Question

What is the value of the function y=18x−13
when x=−4
?(1 point)
Responses

−13.5
negative 13.5

−12.5
negative 12.5

−16
negative 16

−15

Answer 1

Compute y = 18(−4) − 13 = −72 − 13 = −85. None of the given choices match −85.

If the function was meant to be y = (1/8)x − 13, then y = (1/8)(−4) − 13 = −0.5 − 13 = −13.5, which matches the first choice. Which form was intended?