8th Grade Unit 3 Linear Equations and Linear Systems

In slope intercept form (y=mx+b) what is the "m"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

Tags

CCSS.8.F.A.3

CCSS.8.EE.B.6

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x
• y=15x+80
• y=x+15
• y=80x+15

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

Find the slope from the table.

• -4
• 1
• 4
• -2

Tags

CCSS.8.EE.B.5

If Raul weighs 8 lbs less than twice his sister's weight, what is the difference between their weights if Raul weighs 180 lbs?

• 94

• 86

• 180

• 164

9+2a=-3-4a

• a = -2
• a = 2
• a = 5
• a = -1

Tags

CCSS.8.EE.C.7

is 7 a solution to the equation
3x+8-x=5x-4

• yes
• no
• maybe

Tags

CCSS.6.EE.B.5

The graphs of two linear equations are shown. What is the best estimate of the solution to the system of equations?

• (0, 2)

• (2, 0)

• (2, -2)

• (-2, -2)

• (-2, 2)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

What is the solution to this system of linear equations?

y = 4x and y - 4x = 0

• There are infinitely many solutions.

• The only solution is (0, 4)

• The only solution is (0, 0)

• There is no solution.

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

Tags

CCSS.HSA.REI.C.6