What is the value of the function y=1/8x−13

Question

when x=−4
?(1 point)
Responses

−13.5
negative 13.5

−16
negative 16

−12.5
negative 12.5

−15

Answer 1

To find the value of the function \( y = \frac{1}{8}x - 13 \) when \( x = -4 \), we can substitute \( -4 \) for \( x \).

First, calculate \( \frac{1}{8} \times -4 \):

\[ \frac{1}{8} \times -4 = -\frac{4}{8} = -\frac{1}{2} = -0.5 \]

Now substitute this value into the equation:

\[ y = -0.5 - 13 \]

Next, calculate \( -0.5 - 13 \):

\[ y = -0.5 - 13 = -13.5 \]

So the value of the function when \( x = -4 \) is:

\[ \text{−13.5} \]

The correct response is −13.5.