Question

The function fis defined by f(x) = 3x-3. For what value of x is f(x) = 48?

Answer 1

Answer: x=51/3

Explanation:

Make f(x)= 48

48=3x-3

Add 3 on each side

51=3x

Divide by 3

51/3

X=51/3

Answer 2

f(17) = 48

Explanation:

Since f(x) = 3x-3, to find the value of x when f(x) = 48 can be found by substituting 48 for f(x).

48 = 3x - 3

51 = 3x

17 = x

When x is 17, f(x) is 48.