PLEASE HELP! I REALLY NEED HELP!!!

Mathematics

1 answer:

Brums [2.3K]3 years ago

5 0

Answer:

on which one?

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Find the average rate of change between f(-4) and f(-1) in the function f(x)=x^2+2x-8

wel

I got (x+4) (x-2)
I feel like its wrong. Sorry i tried

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3 years ago

You get paid \$14.50$14.50 an hour at your job and the newest video game costs \$85.00$85.00. Find the inequality that repr

Zielflug [23.3K]

Answer:

14.50x > 85

Step-by-step explanation:

14.50x > 85

divide both sides by 14.5

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x has to be greater than 5.86 hours

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2 years ago

Suppose a parabola has vertex (6,5) and also passes through the point (7,7). Write the equation of the parabola in vertex form.

jek_recluse [69]

Answer:

Choice B: $y = 2\, (x - 6)^{2} + 5$ .

Step-by-step explanation:

For a parabola with vertex $(h,\, k)$ , the vertex form equation of that parabola in would be:

$\text{$y = a\, (x - h)^{2} + k$ for some constant $a$}$ .

In this question, the vertex is $(6,\, 5)$ , such that $h = 6$ and $k = 5$ . There would exist a constant $a$ such that the equation of this parabola would be:

$y = a\, (x - 6)^{2} + 5$ .

The next step is to find the value of the constant $a$ .

Given that this parabola includes the point $(7,\, 7)$ , $x = 7$ and $y = 7$ would need to satisfy the equation of this parabola, $y = a\, (x - 6)^{2} + 5$ .