Question

Consider the linear function f(x)= 3x - 1.
Find the value of x when f(x)=-4, f(x)=8, f(x)=0.

Answer 1

f(x) = -4
3x - 1 = -4
3x = -3
x = -1

f(x) = 8
3x - 1 = 8
3x = 9
x = 3

f(x) = 0
3x - 1 = 0
3x = 1
x = 1/3

Answer 2

Answer:

X is -13 when f(x) = -4

X is 23 when f(x) = 23

X is -1 when f(x) = 0

Step-by-step explanation:

f(-4) = 3(-4) - 1 = -12 - 1 = -13

f(8) = 3(8) - 1 = 24 - 1 = 23

f(0) = 3(0) - 1 = -1