Question

1. What is the x-intercept of the following linear function?

f(x) = 2x + 4*
(2 Points)
a. (0.4)
b. (4,0)
c. (-2,0)
d. (0-2)

Answer 1

To find x-intercept we have to solve f(x)=0

But it is given that f(x)= (2x+4)

Therefore, the equation is :---

`2x + 4 = 0 \\ 2x = - 4 \\ x = (( - 4))/(2) \\ \boxed{x = - 2}✓`

c. (-2,0) is the right answer.

Answer 2

Explanation:

At the x-intercept of f(x), we have f(x) = 0.

=> 2x + 4 = 0, 2x = -4, x = -2.

Hence the x-intercept is (-2, 0). (C)