Algebra 1 Unit 3 Review

Find the Domain of the Relation: { (2,1), (0,0), (4,2) }

• D : {0, 2, 4}

• D : {2, 0, 4}

• D : {1, 2, 0}

• D : {0, 1, 2}

Find the Range of the Relation: { (2,1), (0,0), (4,2) }

• R : {0, 2, 4}

• R : {2, 0, 4}

• R : {1, 2, 0}

• R : {0, 1, 2}

Is the relation a function? { (2,1), (0,0), (4,2) }

• Yes it's a function

• No it's not a function

• What is a function?

• What's a relation?

The following relation is a function: { (1,8), (-1,4), (0,5), (-3,2) } What is the range of the function?

• R : { 1, -1, 0, 5 }

• R : { 2, 4, 5, 8 }

• R : { 8, 4, 5, 2 }

• R : { -1, 0, 1, 5}

The following relation is a function: { (1,8), (-1,4), (0,5), (-3,2) } What is the domain of the function?

• D : { 1, -1, 0, -3 }

• D : { 2, 4, 5, 8 }

• D : { 8, 4, 5, 2 }

• D : { -3, -1, 0, 1}

Merri has $12. Suppose that the function f(x) = 1.25x + 4 represents the cost to rent x games each month. How many more dollars will Merri need to rent 10 games next month?

• $16.50

• $4.50

• $10

• $6.50

Several input and output values of a function are given in the table provided. Which coordinate pair could not be part of the function?

• ( -5, -1 )

• ( -2, 0 )

• ( -1, 6 )

• ( 3, -2 )

For f(x) = -3x - 5, find f(2)

• 0

• -12

• 9

• -11

For 𝑓(𝑥) = −5𝑥 + 7, find 𝑓(−2)

• 9

• -17

• -3

• 17

Tickets for the school cheer competition cost $6 each. Kristin plans to make a table relating the number of people (x) to the money made from the ticket sales (y). What is the most appropriate Range for Kristin’s table?

• All integers

• All rational numbers

• All real numbers

• All whole numbers