Algebraic Operations and Composite Functions Quiz

f(x) = x²+9
g(x) = x-9
Find f(x)-g(x). 

• x²+x+9
• x²-x+9
• x²-x
• x²-x+18

Tags

CCSS.HSF-BF.A.1B

 Given f(x)= x² + 25 and g(x)= x - 5, find     (f+g)(x). 

• x² + x - 20
• x² + x + 20
• -x² + x - 20
• x² - x - 20

Tags

CCSS.HSF-BF.A.1B

f(x)=x²+1
g(x)=2x-5
Find f(x)-g(x)

• x²-2x+6
• -x²+2x+4
• -x²-2x-6
• x²-2x-4

Tags

CCSS.HSF-BF.A.1B

f(x) = 4x+8

g(x) = x+3,

Find f(x) * g(x)

• 4x²+24

• 4x²+20x+24

• 4x²+12x+24

• 4x²+4x+24

f(x) = 4x+8

g(x) = x+3,

What is the domain of f(x) * g(x)?

If f(x) = 2x and g(x) = 2x - 7, find f(x)/g(x).

• (2x - 7)/(2x)

• -7

• (2x)/(2x - 7)

• 1x - 3.5

If f(x) = 2x, g(x) = 2x - 7, and f(x)/g(x), for what value can x NOT be?

• -7/2

• 7/2

• 3.5

• 7

f(x) = 3x + 10
g(x) = x - 2
Find (f∘g)(0)

• 16
• 4
• -4
• None of these.

Tags

CCSS.HSF-BF.A.1C

• 9 - √17
• 4
• 2
• √8

Tags

CCSS.HSF-BF.A.1C

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

• 9x² - 6x + 1

• 3x - 1

• 3x² - 1

• 9x² - 1

Tags

CCSS.HSF-BF.A.1C