(a) That the assistance provided in ORS 456.315 and 456.320 for the remedying of the conditions set forth in the Housing Authorities Law is a matter of state concern and constitutes a public use and purpose and an essential governmental function for which public moneys may be spent and other aid given.
(b) That it is a proper public purpose for any state public body to aid any housing authority operating within its boundaries or jurisdiction or any housing project located therein, as the state public body derives immediate benefits and advantages from such an authority or project.
(c) That ORS 456.305 to 456.325 are necessary in the public interest.
(2) The powers conferred by ORS 456.305 to 456.325 are in addition and supplemental to the powers conferred by any other law.