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3 years ago

This is a really hard question

Mathematics

2 answers:

mash [69]3 years ago

8 0

Answer:

The answer is in the photo hope it helps

Step-by-step explanation:

Anastasy [175]3 years ago

5 0

Answer:

D. 4x - 6

Step-by-step explanation:

f(x) = 4x - 2
f(x - 1) = 4(x - 1) - 2 = 4x - 4 - 2 = 4x - 6

Correct option is D

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olganol [36]

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3 years ago

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What is the period for the function y = -4 cos (5x +3)? (4.3)

BlackZzzverrR [31]

The periodicity of function is $\frac{2 \pi}{5}$

Solution:

Given that we have to find the period of function

Given function is:

$y = -4 + cos(5x+3)$

Use the below formula:

$\mathrm{Periodicity\:of\:}a\cdot \cos \left(bx\:+\:c\right)\:+\:d=\frac{\mathrm{periodicity\:of}\:\cos \left(x\right)}{|b|}$

Thus,

$Peridocity\ of\ cos(5x + 3) - 4 = \frac{\text{periodicity of cos(x)}}{5}$

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periodicity of cos(x) = $2 \pi$

Therefore,

$Peridocity\ of\ cos(5x + 3) - 4 = \frac{2 \pi}{5}$

Thus the periodicity of function is $\frac{2 \pi}{5}$

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Step-by-step explanation:

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