What is the range of the function f(x) = 4x + 9, given the domain d = {4, -2, 0, 2}?
o a. r = {-17, -9, -1, 17)
ob. r= {1, 7, 9, 17)
c. r=17, -1, 9, 17)
od. r= {-7, 1, 9, 17}

For this case we have that by definition, the domain of a function is given by all the values for which the function is defined.

While the range of the function is the set of all the values that takes.

We have the following function:

We evaluate in the domain:

{-7,1,9,17}

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

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