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Bethany S.

asked • 10/23/20

Write an equation of the parabola that passes through the point (−6,64) and has x-intercepts −4 and 58. Then find the average rate of change from x=−4 to x=6.

Algebra question, please help

1 Expert Answer

By:

Katie S.

You have to find a first. You can not assume that a is 1. So if you bring 1/2 into your equation, it should be one that goes through all of those points. y= 1/2x^2 -27x -116. I just left it in intercept form bc it was not specific which form was needed. y=1/2(x+4)(x-58).
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10/23/20

Brenda D.

tutor
Agreed and thanks Katie took a while for the website to post my update. I need to update the entire answer since without doing a first you get the wrong parabola. I get messages to try again or just stick at loading..... often not sure why.
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10/23/20

Bethany S.

Personally, I didn't understand. It is from my math quiz.
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10/23/20

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