Find the output of the function y=−3x−7 when the input is −5. The correct output is ?

Question

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Answer 1

To find the output of the function \( y = -3x - 7 \) when the input \( x \) is \( -5 \), we simply substitute \( -5 \) for \( x \):

\[ y = -3(-5) - 7 \]

Now, calculate \( -3(-5) \):

\[ -3(-5) = 15 \]

Next, substitute this value back into the equation:

\[ y = 15 - 7 \]

Now, perform the subtraction:

\[ y = 8 \]

Thus, the correct output is \( \boxed{8} \).