Unit 8 Test Prealgebra B

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function 
• Not a Function

This is a function. True or false?

• True
• False

Tags

CCSS.8.F.A.1

This relation is a function. True or false?
{(0,1), (2,4), (1,0), (2,3), (3,6)}

• False
• True

Tags

CCSS.8.F.A.1

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• x

Tags

CCSS.8.EE.B.5

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the slope a horizontal line?

• -1
• undefined
• 1
• 0

Tags

CCSS.8.EE.B.5

What is the y-intercept of the following linear function y = -4x - 6?

• (0, -4)

• (-4, 0)

• (0, -6)

• (-6,0)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours? 

• $394
• $440
• $472.80
• $512.20