Question

How do you think you can find f(3) for f(x)=5x-2 without using a graph?

Answer 1

13

Explanation:

Given that,

f(x) = 5x - 2

To find the value of f(3), replace x with 3 and solve the expression.

Let us solve it now.

f(x) = 5x - 2

f(3) = 5 × 3 - 2

f(3) = 15 - 2

f(3) = 13

Answer 2

The value of f(3) is 13

Explanation:

Let x = 3

f(3) = 5*3 -2

= 15 -2

13

The value of f(3) is 13