What is the period of the function f(x) = -4 cos(5x-9) - 7? Give an exact value. units

Mathematics

2 answers:

ehidna [41]1 year ago

5 0

Answer:

2pi/5

Step-by-step explanation:

The only thing in this equation that affect the period is the '5' in front of the 'x'

cos period is usually 2pi

this is compressed by 5

period = 2pi/ 5

N76 [4]1 year ago

4 0

General equation

y=Acos(Bx+C)+D

Our Equation

y=-4cos(5x-9)-7

On comparing

A=-4
B=5
C=-9
D=-7

Now

Period

2π/B
2π/5

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SOVA2 [1]

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3 years ago

Figure ABCD is graphed on a coordinate plane.

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1. BC is 1+3=4 (units)

2. AD is 3+5= 8 (units)

3. Draw the altitude CH from point C, as shown in the figure.

4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.

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