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lesya [120]
3 years ago
8

Which description matches the transformations y = cosx undergoes to

Mathematics
1 answer:
nikdorinn [45]3 years ago
8 0

Answer:

C.

Step-by-step explanation:

The parent function is y = cos(x).

When we have y = cos(x) + 1, this tells us that the graph has been shifted up by 1.

When we have y = -cos(x), this tells us that the graph has been reflected across the x-axis.

When we have y = 3cos(x), this tells us that the graph has been vertically stretched by a factor of 3.

All together, the answer is C.

Notes:

y = 3cos(x) would be a vertical stretch, while y = cos(3x) would be a horizontal compression.

y = -cos(x) is a reflection across the x-axis, while y = cos(-x) would be a reflection across the y-axis.

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3 years ago
The length and width of a rectangle are consecutive integers. The perimeter of the
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The length of the rectangle is 9 feet and the width of the rectangle is 10 feet.

<h3>What is the Perimeter of a Rectangle?</h3>

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We know that the perimeter of a rectangle is given by

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Here

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