composite function

Given f(x) = x+3, find f(-2).

• -1

• 1

• 5

• -5

Given
 f(x) = 2x² + 5x - 17,
find f(-1). 

• f(-1) = -20
• f(-1) = -24

Given f(x) = 2x and
g(x) = x²+3 , find f(g(x)).

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6

Given f(x)= -3x+7 and g(x)=2x² - 8, find f(g(x)).

• f(g(x))= -6x²+31
• f(g(x))= -6x²+24
• f(g(x))=18x²-84x+6
• f(g(x))=9x²-42x-1

g(x)=3x+4
h(x)=3x-1
Find (g∘h)(x)

• -9x+11
• 4x²+4x
• 9x+1
• 9x+11

Let $f\left(x\right)\ =\ 2x\$  and  $g\left(x\right)\ =\ x\ +\ 7$ 
What is  $f\left(g\left(5\right)\right)\ =\ ?$  

• 17

• 24

• 12

• 10

Which of these are a composite function?

• $f\left(x\right)$

• $f\left(g\left(x\right)\right)$

• $g\left(x\right)$

• $f\left(2\right)$

Let  $f\left(x\right)\ =\ x^2$  and  $g\left(x\right)\ =\ 3x$  

What is  $f\left(f\left(5\right)\right)$  = ?

• 625

• 75

• 225

• 45

f(x) = 3x + 10
g(x) = x - 2
Find g(f(-10))

• -42
• -26
• -18
• None of these.

If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?

• 7
• -2
• -9
• -10