OPINION
Appellant Edmond D. Kahn 1 appeals from a grant of summary judgment in favor of *410 аppellees the City of Tucson Affirmative Action Division, City Manager’s Office, Human Relations Commission, and officers thereof. Kahn contends that appellees violated the Human Relations Ordinance of the Tucson Code when they failed to investigate his claims that certain discounts for senior citizens and children constitute illеgal age discrimination. The superior court concluded on public policy grounds that such discounts are reasonable and found no violation of the ordinance. For the reasons discussed below, we affirm.
Factual and Procedural Background
In the spring of 1994, Kahn filed two complaints with the Affirmative Action Division of the Tucson City Manager’s Office (Division). The first alleged unlаwful discrimination by the city’s Randolph Park tennis facility in charging adults over 18 and under 60 fees of $1.50 while charging seniors and juniors only $1.00. The second complaint alleged that Smitty’s Super Store discriminated by offering a 10% discount every Tuesday to customers age 60 and over. Kahn alleged that these practices were prohibited by the Tucson Humаn Relations Ordinance, Tucson Code, Chapter 17 (ordinance).
In June, the Division informed Kahn by letter that it did not have jurisdiction to review complaints directed at the city, but that it was “in the process of completing its inquiry” into his claim against Smitty’s. In a July 28 letter, the Division advised Kahn that it had completed its inquiry and determined that Smitty’s was not in violation of the ordinance and that the Division would not investigate his complaint. Kahn requested review of that decision by the Tucson Human Relations Commission, which confirmed the Division’s findings and decision. Kahn then filed a complaint for special action writ of mandamus in superior court to compel the Division to “perform the acts required of them.” Appellees moved for summary judgment, primarily on the ground that there had been no violation of the ordinance. The trial court granted the motion, finding senior citizen discounts reasonable and a favored public policy. 2
On appeal, Kahn contends the trial court erred in granting summary judgment for ap-pellees bеcause the Division violated its mandatory duty to investigate his claims, and that it was error for the court to conclude as a matter of law that senior citizen discounts do not constitute unlawful age discrimination. He also claims violations of his constitutional rights and challenges the constitutionality of the ordinance.
Mandamus
Kahn first argues thаt summary judgment was improper because appellees failed to investigate his charges and furnish copies of the charges to the respondents, “contrary to the specific ministerial duties imposed upon them by the Tucson Human Relations Ordinance.” We disagree.
The relevant portions of the ordinance provide:
Sec. 17-15. Complaint Procedures.
(a) ... The division shall furnish the respondent with a copy of the charge and shall promptly investigate the allegations of discriminatory practices set forth in the charge.
(b) The division shall, within one hundred twenty (120) days of receiving the charge, render written findings as to whether there is reasonable cause to substantiate the charge.
The ordinary meaning of “investigate” is “Mo observe or inquirе into in detail.” American Heritage Dictionary 675 (2d college ed. 1982). The record shows that after receiving Kahn’s complaints, the Division made an “inquiry” into the allegations against Smitty’s, 3 and informed Kahn by let *411 ter of its conclusion that the facts alleged did not violate the ordinance. In response to Kahn’s interrogatories, the Division stated that it had accepted Kahn’s factual allegations against Smitty’s as true. Kahn does not explain what more there was for the Division to investigate, nor can we fathom why the Division’s inquiry was not an “investigation” for the purpose of determining whether the charge could be substantiated. That the Division determined not to pursue the matter further does not mеan its initial inquiry cannot be considered an investigation. As Kahn apparently concedes, “[h]ow the bureaucrats investigate and the extent of the investigation is, probably, discretionary.” We conclude that sufficient investigation was conducted to satisfy the requirements of the ordinance, and Kahn makes no showing that the Division was required to do more. 4
Kahn’s argument is also meritless because the Division’s duty here was not ministerial. Ministerial duties are those which permit a public officer only one course of action on an admitted state of facts.
State Board of Barber Examiners v. Walker,
The purpose of the Human Relations Ordinance is to eliminate “prejudice and discrimination” in places of public accommodation, employment and housing. § 17-1. The subsection prohibiting discrimination in public places provides that no “facility or service shall be refused or restricted because of race, color, religion, ancestry, sex, age, physical handicap, national origin, sexual or affectional preference, or marital status,” nor shall these factors result in any person being “unwelcome, objectionable, unacceptable, undesirable or not solicited.” § 17-12(a). Price discounts are not among the prohibited aсts delineated in the ordinance, thus Kahn’s claims do not expressly state violations of the ordinance. Consequently, the question of whether age-related discounts fall within the ordinance, or whether such discounts result in other persons being “refused or restricted” from service, are matters involving interpretation of the ordinanсe. The Division is entitled to exercise its judgment and discretion in determining the scope of the ordinance since it is charged with enforcing it.
See Kubby v. Hammond,
That the Division failed tо carry out the ministerial act of furnishing a copy of the charge to the respondent does not require a different result. Reading the ordinance as a whole, the word “shall” as applied to providing notice of a non-colorable charge may be reasonably construed as used in a directive rather than mаndatory sense.
See Arizona Downs v. Ariz. Horsemen’s Foundation,
Senior Citizen Discounts
We also find nо error in the trial court’s conclusion that senior citizen discounts do not amount to unlawful age discrimination. Section 17-12 of the ordinance makes it unlawful for any place of public accommodation “to discriminate against any person” because of race, color, religion, an *412 cestry, sex, age, physicаl handicap, or national origin. “Discriminate” is defined as “any distinction with respect to any person” based on the above factors. § 17-ll(a). Thus, as Kahn urges, the language of the ordinance can be construed literally to prohibit any pricing practice based on age.
The plain language of a statute is normally сontrolling, except in the case where it would lead to an absurd result or a result at odds with the intent of its drafters.
Resolution Trust Corp. v. Western Technologies, Inc.,
Even without revisiting the express purpose and specific provisions of the Tucson civil rights ordinance as noted above, it is readily apparent that prohibiting age-related discounts is not an intended objective or construction of the legislаtion. Since the enactment of the ordinance in 1974, the Tucson City Council has specifically established numerous mandatoiy senior citizen discounts. These include reduced rates for the use of city tennis courts, § 21-10, city-sponsored recreation trips, § 21-13.2, city gymnasium equipment, §§ 21-14.1, 14.2, city golf courses, § 21-25.3, city zoo admission, § 21-51, and city buses, § 2-18. While Kahn argues that all of these discounts are “arbitrary” and equally prohibited, we believe the city’s actions are a clear indication of legislative intent, as well as a reflection of widely accepted public policy.
We have found no Arizona precedent deal- ■ ing with this issue. As appellees point out, however, Tucson’s Human Relations Ordinance provides guidelines which are substantially similar to those found in California’s Civil Rights Act.
5
In construing its Act, California courts have upheld price discounts for senior citizens and children in cases factually similar to the one before us.
See Starkman v. Mann Theatres Corp.,
Kahn also alleges violation of his “fundamental rights” and cites the equal protection clause of the Arizona Constitution, which has been held equivalent to the equal protection guarantee of the Fourteenth Amendment to the United States Constitution,
J.C. Penney Co., Inc. v. Arizona Dept. of Revenue,
Equal privileges and immunities:
No law shall be enacted granting to any citizen, class of citizens, or corporation other than municipal, privileges or immunities which, upon the same terms, shall not equally belong to all citizens or cоrporations.
Ariz. Const, art. II, § 13. An equal protection challenge, of course, is not applicable to conduct between private parties.
See Rannels v. Meridian Bancorp, Inc.,
It is well settled that age-based classifications do not trigger strict judicial scrutiny as do distinctions based on “suspect” classifications involving immutable characteristics such as race or national origin.
Massachusetts Board of Retirement v. Murgia,
Where a classification does not involve a suspect grouping or a constitutionally protected interest, a denial of equal protection will be found only if there is no rational basis for the classification.
Murgia; Williams.
“[Ujnless a fundamental right is violated or an invidious classificаtion is created, a statute impinging on the equal privileges and immunities of a class of Arizona residents will be upheld if it has a rational basis.”
Trujillo v. Superior Court of Pima County,
[Various] cases reason that all members of society regardless of their sеx, race, religion or national origin will, in the normal course of events, be members of the class entitled to the discount. These eases recognize that senior citizens are entitled to retire at some point in their lives. Further, that upon retirement income diminishes and that encouraging and enabling citizens to enjoy life and the benefits of society as they reach an elderly age is a favored public policy.
Indeed, our society has long maintained and even institutionalized traditions of providing *414 benefits to older citizens, as seen in the tax system, social security system, and housing laws to name a few. We conclude that the age-based discounts сomplained of by Kahn have a sufficiently rational basis, as articulated in the trial court’s judgment and the ease law of many other jurisdictions, 7 and therefore do not deny Kahn the equal protection of the laws.
Constitutionality of the Ordinance
Finally, Kahn contends that the ordinance itself is unconstitutional because it “restricts Tucsonans’ freedom of assоciation and liberty of contract by decreeing that Tucson citizens
must
associate with, do business with and contract with persons
of all
races,
all
nationalities, sexual proclivities, etc.” Kahn did not raise this theory below and therefore it is waived on appeal.
Owens v. City of Phoenix,
The judgment of the superior court is affirmed.
Notes
. Kahn’s original complaint in the superior court as well as his notice of appeal listed "The Ari *410 zona Constitutional Rights Union” as an additional plaintiff; however, the trial court dismissed it as a party and no appeal was taken from that ruling.
. The trial court did not address the issue of mandamus.
. Kahn’s complаint concerning the city tennis facility was apparently not acted upon because the Division determined it did not have jurisdiction over public entities. We need not resolve that issue in view of our disposition of Kahn’s claims on their merits, infra.
. Kahn places much stock in the Division’s statement in the July 28 letter that it would "not investigate” his comрlaint. In view of the undisputed nature of Kahn's factual allegations and the record before us, we do not find that statement determinative.
. California Civil Code § 51 (the Unruh Act) states in pertinent part: "All persons within the jurisdiction of this state are free and equal, and no matter what their sex, race, color, religion, ancestry, national оrigin, or blindness or other physical disability are entitled to the full and equal accommodations, advantages, facilities, privileges, or services in all business establishments of every kind whatsoever.” Although the Unruh Act does not delineate age as a category, it has been construed to apply to age classifications.
Starkman v. Mann Theatres Corp.,
. See e.g. Jefferson v. Hackney,
. See cases cited in note 6, supra.
