find the output of the function y equals "-3x" - 7 when the input is "-5"
To find the output of the function when the input is -5, substitute -5 for x in the function y = -3x - 7.
y = -3(-5) - 7
y = 15 - 7
y = 8
Therefore, when the input is -5, the output of the function is 8.