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Precalculus
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What graph represents the same relation as the rule y = 2x, for all real numbers x?

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Mary Ramoy
Mary RamoyLv10
26 Nov 2020

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Related questions

What is the domain of the graph of ?

A. All real numbers

B. x ≤ −4

C. x ≥ −6

Dx ≥ −2

The graph of the function is shown below.

Which statement is true:

A. The function is increasing for all real values of x where .

B. The function is increasing for all real values of x where .

C. The function is decreasing for all real values of x where  and where .

D. The function is decreasing for all real values of x where .

DISCUSS Sinusoidal Curves The graph of y = sin x is the same as the graph of y = cos x shifted to the right  units. So the sine curve,    is also at the same time a cosine curve:   . In fact, any sine curve is also a cosine curve with a different horizontal shift, and any cosine curve is also a sine curve. Sine and cosine curves are collectively referred to as sinusoidal. For the curve whose graph is shown, find all possible ways of expressing it as a sine curve,    or as a cosine curve,   . Explain why you think you have found all possible choices for a and b in each case.

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