Algebra 2 Unit 1 Review

What is the range?

What is the domain in interval notation?

• [ -5 , 5 )

• { -5 ≤ x < 5 }

• { -8 < x ≤ 5 }

• ( -8 , 5 ]

Which image represents a relation and its inverse?

• 
• 
• 
• 

Order these steps to find

the inverse of an equation:

A) write function notation as "y="

B) replace with inverse notation

C) solve for y

D) switch x and y

• A, B, C, D

• D, C, B, A

• A, C, D, B

• A, D, C, B

Which shows the correct composition for finding (ƒ ° g) (x) ?

ƒ (x) = 4x

g(x) = 3x + 1

• (ƒ°g)(x) =4x(3x+1)

• (ƒ°g)(x) = 3(4x)+1

• (ƒ°g)(x) = 4(3x+1)

• (ƒ°g)(x) = 3x(4x)+1

Match the graph with its domain.

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step
• They should add 19 instead of subtracting 19
• I can not find an error
• Instead of adding 3k they should subtract 3k

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

What is f(1)?

• 1
• 5
• 0
• 4

What is x if
f(x) = -2?

• 4
• 0
• 3
• 8