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3 years ago

What is the answer?I dont get it please help!

Mathematics

1 answer:

Temka [501]3 years ago

3 0

2(x-5) + 4x - 7 = 7
2x-10 + 4x -7 -7 =0
6x - 24 = 0
6x = 24
x= 24/6
x= 4

Micah's answer is incorrect because X=4

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The instructions aren't stated anywhere, but I'm assuming your teacher wants you to find the equation of each parabola.

The vertex here is (h,k) = (-6,-4) which you have correctly determined.

This means

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represents the equation of the parabola in vertex form.

<h3>Answer: $y = (x+6)^2 - 4\\\\$ </h3>

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The vertex is (h,k) = (-2,-6)

So,

$y = a(x-h)^2 + k\\\\y = a(x-(-2))^2 + (-6)\\\\y = a(x+2)^2 - 6\\\\$

Now plug in another point on the parabola like (-1,-8) and solve for 'a'

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For each equation, you could optionally expand things out to get it into y = ax^2+bx+c form, but I think it's fine to leave it as vertex form.

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svetoff [14.1K]

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