Question

If f(x) = 2x + 3, what is the value of x when f(x) = 4?

A) 3
B) 3.5
C) 4
D) 5.5

Answer 1

The value of x when f(x) = 4 is 0.5.

Step-by-step explanation:

To find the value of x when f(x) = 4, we can set 2x + 3 equal to 4 and solve for x.

2x + 3 = 4

Subtracting 3 from both sides of the equation, we get:

2x = 1

Dividing both sides of the equation by 2, we get:

x = 0.5

Therefore, the value of x when f(x) = 4 is 0.5.