Question

Using the equation y = 3x – 5, what would the output be for an input of 4

Answer 1

output(y)=7

Explanation:

y=3(4)-5

<=> y= 12-5

<=> y= 7

Answer 2

The input is the x-coordinate and the output is the y-coordinate. If the input is 4, plug 4 into the x variable to find the output, y.

y=3(4)-5
y=12-5
y=7

The output is 7.