A reseаrch teаm hаs been cоntracted tо learn sоme information about the donuts sold at a bakery. Choose the name that best fits the scenario. The research team decides to put survey cards by the cash register to ask about the donuts. Cashiers will ask those purchasing donuts to please take the survey, but those purchasing get to decide.
When f(x) = 9 - 3x2, then 1) f(-6)=[аns1]. 2) f(x-1)=[аns2].