Question

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

−16
negative 16

−15
negative 15

−12.5
negative 12.5

−13.5

Answer 1

y = 18(−4) − 13 = −72 − 13 = −85.

None of the provided choices match −85. (If the intended function was y = (1/8)x − 13, then y = (1/8)(−4) − 13 = −13.5.)