Functions Quick Check

Question

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

−16
negative 16

−12.5
negative 12.5

−13.5
negative 13.5

−15

Answer 1

To find the value of the function y=18x−13 when x=−4, we substitute x=-4 into the function:

y = 18(-4) - 13
y = -72 - 13
y = -85

Therefore, the value of the function y=18x−13 when x=−4 is -85.