A2 Functions Unit Practice Quiz 1

Given that f(x) = x – 4, g(x) = 2x²– 3x, and h(x) = x²– 2x - 8, find (f+g)(x)

• x² - 3x - 4

• x² + x - 12

• x² - x + 4

• 2x² - 2x - 4

Given that f(x) = x – 4, g(x) = 2x²– 3x, and h(x) = x²– 2x - 8, find (f*h)(x)

• x³ - 6x² + 32

• x³ - 6x² +16x + 32

• x³ - 8x² + 32

• x³ - 6x² + 16x - 32

Given that f(x) = x – 4, g(x) = 2x²– 3x, and h(x) = x²– 2x - 8, find (f-g)(3)

• 8

• -10

• -8

• -28

Given that f(x) = x – 4, g(x) = 2x²– 3x, and h(x) = x²– 2x - 8, find (g/f)(-1)

• -5/11

• 2

• -1

• 5/11

Given that f(x) = 2x – 1 and g(x) = x²+ 7 find f[g(x)]

• 2x³ - x² + 14x - 7

• 2x³ + x² - 14x - 7

• 2x² + 13

• 4x² - 4x + 8

Given that f(x) = 2x – 1 and g(x) = x²+ 7 find g[f(0)]

• -7

• 6

• 8

• 13

Tags

CCSS.HSF-BF.A.1C

Find (g - f)(3)

• -3

• 0

• 3

• 9

Find g[f(2)]

• -2

• 0

• 2

• 4

Find (g*f)(-2)

• -25

• -10

• 0

• 25

Find f[f(-3)]

• -5

• -2

• 5

• 29