Chapter 4 Review

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

Tags

CCSS.HSF-BF.A.1B

f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f - g)(x).

• x² + 8x + 1
• x² + 6x - 1
• 5x² + 8x - 1
• x² + 8x -1

Tags

CCSS.HSF-BF.A.1B

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

• x²+x+9
• x²-x+9
• x²-x
• x²-x+18

Tags

CCSS.HSF-BF.A.1B

Determine the inverse for the function:

R (x) = 2x + 1

Tags

CCSS.HSF-BF.B.4A

Which is the inverse of the table?

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Tags

CCSS.HSF-BF.B.4C

Which is the inverse of the table?

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• 
• 
• 

Tags

CCSS.HSF-BF.B.4C

Which graph is the inverse of the graph shown?

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Tags

CCSS.HSF-BF.B.4C

Are these inverse functions?

• no
• yes
• no way to tell

Tags

CCSS.HSF-BF.B.4B

Are these functions inverses?

• Yes
• No

Tags

CCSS.HSF-BF.B.4B

What does it mean to find the inverse of a function when we are looking at tables?

• the x's and y's are switched

• the x's and y's are divided by 2

• the x's and y's are made negative

• the x's and y's are the same

Tags

CCSS.HSF-BF.B.4C