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Lubov Fominskaja [6]
3 years ago
15

Which description matches the transformations y=cosx undergoes to produce y=3cos(-2x)

Mathematics
2 answers:
kap26 [50]3 years ago
7 0

Answer:

d) horizontal stretch by factor 2, reflection across the x-axis, then vertical stretch by factor 3.

Step-by-step explanation:

a p e x :)

Hoochie [10]3 years ago
4 0
Let us check the transformations. The first step is regarding the argument of the function, the -2x part. So, first of all, the minus sign implies that the function is reflected along the y-axis since f(x) is replaced with f(-x). However, cosx is symmetric along that axis so there is no change on the graph. Also, the 2 factor means that the function is compressed along the x-axis, since now f(2) corresponds to f(1) etc. (if we substitute 1 in the cos(2x), it is as if substituting 2 in the origninal function cosx). Finally, we have that the factor 3 in front of cos, implies that the function is dilated along the y-axis; the highs become 3 times higher and the lows 3 times low.
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17 is the smaller number.
EXPLANATION:

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3 years ago
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Step-by-step explanation:

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The graph of g(x) is a reflection and translation of<br> f(x) = ³√x.
yaroslaw [1]

The function g(x) will be given as g(x) = – ∛(x – 1). Then the correct option is D.

The complete question is attached below.

<h3>What is a transformation of geometry?</h3>

A spatial transformation is each mapping of feature shapes to itself, and it maintains some spatial correlation between figures.

Reflection does not change the size and shape of the geometry.

Translation does not change the size and shape of the geometry.

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f(x) = ∛x

Then the function of the g(x) will be

g(x) = – ∛(x – 1)

Then the correct option is D.

More about the transformation of geometry link is given below.

brainly.com/question/22532832

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2 years ago
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I need help due in 20 min thank I will help u to
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