Question

For the function y = -2x + 4, the input is 3. What is the output?​

Answer 1

The output is -2 when the input is 3.

Explanation:

You're actually being asked to evaluate y = -2x + 4 at x = 3. x is the 'input' and y is the 'output.'

At x = 3, y = -2(3) + 4 = -2

The output is -2 when the input is 3.