Question

Consider the linear function f(x)=4x -5.
Find f(3), f(0), f(-2).

Answer 1

Answer: f(3)= 7, f(0)= -5, f(-2)= -13

Explanation:

Substitute and plug in.

For f(3), we plug in 3 for x in the equation.

So, 4(3)-5, which is just 12-5, which is 7

We do the same for f(0),

4(0)-5, which is 0-5, which is -5

Once again for f(-2),

4(-2)-5, which is -8-5, which is -13

Hope this helps!