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iren2701 [21]
4 years ago
13

Consider the function y = 2cos(-x)-4. What effect does "-x" have on the basic graph?

Mathematics
1 answer:
Alexxx [7]4 years ago
4 0

Answer:

A)

But really there is no effect since cos(-x)=cos(x).

Step-by-step explanation:

Cosine is an even function.

Even functions are symmetric about the y-axis.

So really for cosine; cos(-x) has no change to cos(x) since they are equal.

But if you keep in mind that cosine is symmetric about the y-axis, then it has been reflected over the y-axis; this is the vertical axis.

A)

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If M is the midpoint of PQ and X is the midpoint of PM then PX = a PQ Which statement is True? a is equal to 1 a is equal to 1/2
garik1379 [7]

Answer:

D. a is equal to  \frac{1}{4}

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Let us assume that segment PQ is 8 units, so that its midpoint M is at 4 units to both P and Q.

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6 0
4 years ago
The angle of the triangle are in the ratio 5:6:9 what is the measure of each angle
sveta [45]
The angles are in the ratio of 5:6:9.
Let the angles be represented by:

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8 0
3 years ago
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