Question

The cost of the toy is expressed by the function y = 3x + 5, where x is the number of toys. If Peter bought 8 toys, find the cost of the toys.

Answer 1

Answer: $29

Explanation:

x = # toys

if the number of toys is 8

substitute 8 into x

y = 3(8) + 5

y = 24 + 5

y = 29

Answer 2

$29

Explanation:

Substitute x with 8.

3(8) + 5 = 24+5 = 29