3 years ago

What are the x-intercepts of the graph of the function below? y=x^2+2x-15

Mathematics

2 answers:

ikadub [295]3 years ago

6 0

Answer:

x=3 and x=-5

Step-by-step explanation:

To find the x intercepts set y =0 and solve for x

0 = x^2+2x-15

Factor

What two numbers multiply to -15 and add to 2

5*-3 = -15

5+-3 =2

0 = (x+5) (x-3)

Using the zero product property

x+5=0 x-3 =0

x=-5 x=3

Korolek [52]3 years ago

3 0

-5 and 3 will be because for -5 it is (-5,0) and 3 is (3,0)

Step-by-step explanation:

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