Question

Rita takes piano lessons at River Rock Arts Center, where she pays $25 per lesson. The function C(p) represents the cost, in dollars, of p piano lessons.
What is the range of C(p)?
all real numbers from O to 25
all multiples of 25 greater than or equal to 0
all whole numbers from 0 to 25
all multiples of 25 from 0 to 250

Answer 1

C(p) = 25p, with p = 0,1,2,... so the outputs are 0, 25, 50, 75, ... .
Therefore the range is "all multiples of 25 greater than or equal to 0."