3 years ago

Melissa graphed the equation y = x2 and Dave

1 answer:

DIA [1.3K]3 years ago

5 0

Answer:

Dave's graph has been reflectes across the x-axis and has a horizontal stretch compared to Melissa's graph.

Step-by-step explanation:

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<u>Step-by-step explanation</u> and Answers:

$(\frac{1}{\sqrt{10}},\frac{3}{\sqrt{10}})$ is in the format (cos, sin). So, adjacent = 1, opposite = 3, hypotenuse = $\sqrt{10}$

sin = $\frac{opposite}{hypotenuse}$ = $\frac{3}{\sqrt{10}}(\frac{\sqrt{10}}{\sqrt{10}})$ = $\frac{3\sqrt{10}}{10}$

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