Function Operations and More

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

find f(x) + g(x).

• 14x - 10

• -8x + 2

• 2x + 2

• 2x - 2

When f(x) = x² + 9 and g(x) = x - 9,

find f(x) - g(x).

• x² + x + 9

• x² - x + 9

• x² - x

• x² - x + 18

f(x)=2x + 4

g(x)=3x² - 1

Find f(x) ⋅ g(x)

• 6x⁴ + 12x³ - 4x² - 8x

• -6x³ + 12x² + 2x - 4

• 6x³ + 12x² - 2x - 4

• 5x² - 18x + 20

Given f(x) = -x + 4 and g(x) = 6x + 3, find (f(x) - g(x))

• -7x + 1

• 5x +1

• -5x -1

• 5x + 1

f(x) = x² - 5x - 8

g(x) = 4x² - x + 3

Find (f + g)(x).

• 5x⁴ - 6x² - 5

• 4x² + 5x + 5

• 4x² + 5x - 5

• 5x² - 6x - 5

Give the correct name for

3x

• Cubic Monomial

• Linear Binomial

• Linear Monomial

• Cubic Binomial

Give the correct name for 
3x²+4x-7

• Quadratic trinomial
• linear binomial
• Quartic trinomail
• Linear Trinomail

(2x + 1)(x - 3)

• -3x - 3
• 2x² + 5x - 3
• 2x² - 5x - 3
• 2x² - 5x +3

• A

• B

• C

• D