Question
What is the value of the function y=18x−13
when x=−4
?(1 point)
Responses
−15
negative 15
−13.5
negative 13.5
−16
negative 16
−12.5
when x=−4
?(1 point)
Responses
−15
negative 15
−13.5
negative 13.5
−16
negative 16
−12.5
Answers
GPT-4o mini
To find the value of the function \( y = 18x - 13 \) when \( x = -4 \), we can substitute \(-4\) into the equation:
\[
y = 18(-4) - 13
\]
Calculating \( 18 \times -4 \):
\[
18 \times -4 = -72
\]
Now substitute that back into the equation:
\[
y = -72 - 13
\]
Now, perform the subtraction:
\[
y = -72 - 13 = -85
\]
So, the value of the function \( y = 18x - 13 \) when \( x = -4 \) is \(-85\). However, since none of the provided options match this result, it seems there may be an error in the interpretation or expected outputs. Please double-check your inputs or options.
\[
y = 18(-4) - 13
\]
Calculating \( 18 \times -4 \):
\[
18 \times -4 = -72
\]
Now substitute that back into the equation:
\[
y = -72 - 13
\]
Now, perform the subtraction:
\[
y = -72 - 13 = -85
\]
So, the value of the function \( y = 18x - 13 \) when \( x = -4 \) is \(-85\). However, since none of the provided options match this result, it seems there may be an error in the interpretation or expected outputs. Please double-check your inputs or options.