What are the x-intercepts for the function f(x)=x2 + 2x - 15? A. (0,-5), (0,3) B. (0,5), (0, -3) C. (5, 0), (-3,0) D. (-5,0), (3,0)

asked Jan 25, 2023 154k views

16 votes

What are the x-intercepts for the function f(x)=x2 + 2x - 15?

A.
(0,-5), (0,3)

B.
(0,5), (0, -3)

C.
(5, 0), (-3,0)

D.
(-5,0), (3,0)

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9 votes

Answer:

D)
(-5,0),(3,0)

Explanation:

$f(x)=x^2+2x-15\\\\0=x^2+2x-15\\\\0=(x+5)(x-3)\\\\x=-5,x=3\\\\(-5,0),(3,0)$

Eos Pengwern answered Jan 29, 2023

7.1k points

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