Function Operations

f(x)= x+3

g(x)= x-2

Find (g(x) / f(x))

Be careful!!

• (x + 3)/(x - 2)

• (x - 2)/(x + 3)

• -2/3

• 3/2

f(x)= x² - 1
g(x)= x - 1
Find (f(x)/g(x))
Then simplify using x = 10

• 9

• 11

• 90

• 110

f(n)= n² + 4n
g(n)= - n - 5
Find f(n) + g(n)

• n² + 3n - 5

• -n³ + 2n - 7

• n³ + 3n - 3n

• n² - 3n - 5

Find f(n) - g(n)

• x² - 2x + 6

• -x² + 2x + 4

• -x² - 2x - 6

• x² - 2x - 4

When f(x) = 9 - 3x and g(x) = 5x - 7

find f(x) + g(x).

• 14x - 10

• -8x + 2

• 2x + 2

• 2x - 2

• 9 - √17
• 4
• 2
• √8

f(x) = 5x - 7 g(x) = 3x + 10 Find (f + g)(x).

• 8x² + 3

• 8x + 3

• 8x - 3

• 15x² - 70

f(x) = 5x - 7

g(x) = 3x + 10

Find (f - g)(x).

• 2x - 3

• 2x + 17

• 2x + 3

• 2x - 17

f(x) = 5x - 7 g(x) = 3x + 10 Find (g - f)(x).

• 2x - 3

• -2x + 3

• -2x + 17

• 2x - 17

f(x) = 5x - 7 g(x) = 3x + 10 Find (f ⋅ g)(x).

• 15x² - 70

• 15x - 70

• 15x² + 31x - 70

• 15x² + 29x - 70