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Len [333]
3 years ago
15

Determine the image of the point (5, -2) under a rotation of 90 degrees about the origin.

Mathematics
1 answer:
Galina-37 [17]3 years ago
8 0

90 degrees means 90 degrees counterclockwise.   So from the fourth quadrant we'll end up in the first quadrant.  X and Y get swapped and one negated, it must be the -2 becoming 2, so our image is

(2,5)

Answer: A


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Answer:

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f(x) = \sqrt x - 8

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y = \sqrt x - 8

Swap x and y

x = \sqrt y - 8

Add 8 to both\ sides

x + 8 = \sqrt y - 8 + 8

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Square both sides

(x + 8)^2 = y

Rewrite as:

y = (x + 8)^2

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<em>Hence, the domain is:</em>

x \ge -8

3 0
3 years ago
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