What is the value of k?

Mathematics

1 answer:

Eddi Din [679]4 years ago

5 0

Answer:

k= (-7) since you are going down the graph not up.

Step-by-step explanation:

Hope this helps :)

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Step-by-step explanation:

because it is muliplying by negatives

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Step-by-step explanation:

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3 years ago

Solve this equation for x. <br> 2/3(x+8)^2-66=0

yKpoI14uk [10]

Answer:

$\large\boxed{x=-8\pm3\sqrt{11}}$

Step-by-step explanation:

$\dfrac{2}{3}(x+8)^2-66=0\qquad\text{add 66 to both isdes}\\\\\dfrac{2}{3}(x+8)^2-66+66=0+66\\\\\dfrac{2}{3}(x+8)^2=66\qquad\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup^1\cdot\dfrac{2}{3\!\!\!\!\diagup_1}(x+8)^2=(3)(66)\\\\2(x+8)^2=198\qquad\text{divide both sides by 2}\\\\\dfrac{2\!\!\!\!\diagup^1(x+8)^2}{2\!\!\!\!\diagup_1}=\dfrac{198\!\!\!\!\!\diagup^{99}}{2\!\!\!\!\diagup_1}\\\\(x+8)^2=99\iff x+8=\pm\sqrt{99}\qquad\text{subtract 8 from both sides}$

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4 years ago