Algebra 1 Keystone Practice

Simplify the expression.

• 8

• -8

• 23

• -3

Tags

CCSS.7.NS.A.3

Which equation matches the graph?

A graph of a relation is shown. Removing which line segment from the graph would make the relation a function of x?

• . the line segment with endpoints (ˉ4, ˉ2) and (ˉ3, 2)

• . the line segment with endpoints (ˉ3, 2) and (3, 3)

• the line segment with endpoints (3, 3) and (4, ˉ3)

• the line segment with endpoints (4, ˉ3) and (ˉ4, ˉ2)

Which set of ordered pairs is a function?

• <(p>{(ˉ10, 4), (ˉ8, 3), (ˉ8, 2), (ˉ4, 1)}

• {(ˉ2, 4), (0, 4), (2, 4), (2, 6)}

• {(1, 5), (1, 6), (2, 7), (3, 8)}

• {(ˉ1, 1), (0, 0), (1, 1), (2, 2)}

Tags

CCSS.8.F.A.1

• 5

• -3

• 0

• 1

Tags

CCSS.8.EE.B.5

A teacher buys some pencils. • He buys 2 pencils for each of his students. • He buys 10 additional pencils. • Each pencil costs $0.10. Which equation describes the total amount of money (y), in dollars, that the teacher spends on pencils as a function of the number of students (x) he has?

• y = 1.20x

• y = 2.00x

• y = 0.20x + 1

• y = 0.10x + 12

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The table below represents a function of x

Which equation describes the function?

• y = -2x + 12

• y = -2x + 24

• y = 2x + 12

• y = 2x + 24

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Paul inherited a stamp collection. Since receiving the collection, Paul has gone to the store and bought the same number of new stamps each week to add to his collection. The equation shown below can be used to determine the number of stamps (y) in Paul’s stamp collection x weeks after he inherited the stamps. y = 3x + 40 Based on the equation, which statement is true?

• The stamp collection had 3 stamps in it when Paul inherited it.

• So far, Paul has purchased 40 additional stamps for the collection.

• Since inheriting the collection, Paul has bought 3 new stamps each week.

• Six weeks after he inherited the collection, Paul’s stamp collection contains 18 stamps.

Tags

CCSS.HSF.LE.B.5

A function of x is graphed on the coordinate plane.

Which table represents the function?

• 
• 
• 
• 

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which equation describes the linear function?