1.4 Composite functions (part 2)

If f(x) = x² and g(x) = 3x - 1, find f(g(x))

• 9x² - 6x + 1

• 3x - 1

• 3x² - 1

• 9x² - 1

Which expression represents g(f(x)) if          f(x) = 2x - 8
and
g(x) = 4x

• 8x - 32
• 8x² - 32x
• 8x - 8
• 6x - 8

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

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6

• 6x² - 1
• 6x - 3
• 5x - 1
• 6x² - 3x

Find h(g(x))

• 2x + 6

• 2x + 3

• 2x² + 6

• 2x² + 3

Find f(h(x))

• 4x²

• 2x²

• 4x⁴

• 2x³

Find h(f(x))

• 4x²

• 2x²

• 4x⁴

• 2x³

Find f(h(x))

• 16x² + 1

• 4x² + 4

• 4x² + 1

• 16x² + 4

If f(x) = x² and g(x) = 3x - 1, find f(g(x))

• 9x² - 6x + 1

• 3x - 1

• 3x² - 1

• 9x² - 1

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

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6