Mathematics: What are the x-intercepts of the graph of the function below? y = x^2 – 3x - 28 A. (-7,0) and (-4,0) B. (7,0) and (-4,0) C. (7,0) and (4,0) D. (-7,0) and (4.0)

What are the x-intercepts of the graph of the

sadiemontoya

29.01.2022

I think the answer might be
B). (7,0) &(-4,0)

Correct me if I’m wrong please❤️

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elisameza

29.01.2022

The x intercepts are (7,0) and (-4,0)

Step-by-step explanation:

y = x^2 – 3x - 28

Set y=0

0 = x^2 – 3x - 28

Factor. What 2 numbers multiply to -28 and add to -3

-7*4 = -28

-7+4 = -3

0 = (x-7)(x+4)

Using the zero product property

0 = (x-7) 0 = x+4

x=7 x = -4

The x intercepts are (7,0) and (-4,0)

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biancabahena04

09.04.2020

524/4.5=116.6666 and so on. So D is going to be the total distance and T is going to be the total time and M is going to be the MPH.

D/T=M

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