The answer is: A - f(x) = 1/2 cos (x)
Alyssa spent half of her allowance going to the movies. She washed the family car and earned 7 dollars. What is her weekly allow
1 answer:
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Answer: second option
Step-by-step explanation:
To find the inverse function of the given function f(x):
You need to:
Substitute into the function:
Now, you need to solve for "x", to do this, you must divide both sides of the function by 2:
Now, replace "x" with "y" and replace "y" with "x":
Therefore, substituting you get:
or