Question

What are the x-intercepts of the function Ax)=(x-4)(x+2)?

OA (-4,0) and (2.0)
OB. (-4.0) and (-2,0)
OC (2.0) and (4,0)
OD. (-2,0) and (4.0)

Answer 1

D. (-2,0) and (4,0)

Explanation:

x-intercepts: y=0

(x-4)(x+2)=0

x-4=0

x=4

(x=4 when y=0)

coordinate:

(4,0)

x+2=0

x= -2

(x= -2 when y=0)

coordinate:

(-2,0)