Function Operations

p(x) = 3x + 4
q(x) = 2x²
Find p(q(x))

• 10x²
• 18x² + 4
• 6x² + 4

g(x)=3x+4
h(x)=3x-1
Find g(h(x))

• -9x+11
• 4x²+4x
• 9x+1
• 9x+11

f(x)=x²-4
h(x)=3x+3
f(h(x))

• 3x²-9
• 12x²+8x+5
• 16x²-36x+20
• 9x²+18x+5

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

• 3x + 8
• 3x - 2
• 3x + 4
• None of these.

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

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6

h(n) = n² - 1

g(n) = 2n - 1

Find h(g(n))

• 4n² - 4n - 2

• 4n² - 4n + 2

• 4n² + 2

• 4n² - 4n

f(a) = a² + a - 3

g(a) = 3a

Find f(g(a))

• 9a² - 3a + 3

• 9a² + 3a - 3

• 3a² - 3a + 3

• 3a² + 3a - 3

f(x)= 4x-7
g(x)= 6x-8
Find f(x)+g(x)

• 2x+15
• 10x-15
• -2x-15
• 10x+1

f(x)= 2x+6
g(x)= -3x+2
Find f(x)-g(x)

• 5x+8
• -x+8
• x+4
• 5x+4

p(x) = 3x + 4
q(x) = 2x²
Find q(p(-2))

• 8
• -8
• 28
• None of these.