Question

I'm taking a timed practice quiz. I'm stuck on these 5 answers Need answers to review so I can take the real test myself

Use the function to answer the question.

f : x → 3 - x

What is the value of f(-4) ?
A. -4
B. -1
C. 3
D. 7

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What is the domain of k(x) = √x + 4 ?
A. all real numbers
B. all real numbers greater than or equal to 4
C. all real numbers greater than 0
D. all real numbers greater than or equal to 0

What is the vertex of the graph of g(x) = |x - 9| + 3?
A. (-9, 3)
B. (-3, -9)
C. (9, -3)
D. (9, 3)

Answer 1

Here is the rest:

The graph of f(x) is obtained by translating the graph of g(x) = |x|5 units to the right. Which is the equation of the graph of f(x)?
A. f(x) = |x| + 5
B. f(x) = |x - 5|
C. f(x) = |x + 5|
D. f(x) = |x| - 5
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Use the function to answer the question
{-2 if x < -3
f(x) ={4x if -3 ≤ x ≤ -1
{x^2 if x > -1

What is the value of f(3)?
A. -3
B. -2
C. 9
D. 12