COAL 12/4

Presentation

•

Mathematics

•

8th Grade

•

Medium

•

CCSS

8.EE.C.8B, HSA.CED.A.2, 8.EE.C.8A

Standards-aligned

Audre Williams

Used 8+ times

FREE Resource

6 Slides • 22 Questions

COAL 12/4

Elimination Review

Multiple Choice

What would be the first step in finding the solution using elimination?

2x + 2y = -2

3x - 2y = 12

you cannot solve this using elimination

cross out the 2x and 3x

Add the like terms. The y terms will zero out.

change to slope intercept form and graph

Multiple Choice

Solve by elimination:

-9x-4y=-20

5x+4y=4

(-4,4)

(4,4)

(4,-4)

(-4,-4)

Multiple Choice

solve using elimination

(0,2)

(1,3)

(0,3)

(2,1)

Multiple Choice

Solve by elimination.

6x - y = 2

-3x - 6y = 12

(2,0)

no solution

(0,-2)

infinite solutions

Multiple Choice

Solve the system:
2x + 3y = -2
3x - 2y = 23

(5, -4)

(-4, 5)

(-5, 4)

infinite solutions

Graphing Lines Review

Multiple Choice

What is the solution?

(1, -1)

(-1, 1)

(0, -2)

(0, 1)

Multiple Choice

What is the slope of the equation?

y = -2x - 1

-2

-2x

-1

Multiple Choice

What is the y-intercept?

y = 6x - 4

-4

Multiple Choice

Which is the graph of y= -x + 2?
Graph it.

Multiple Choice

Graph y=-1/5x+3

Multiple Choice

Write the equation of the line.

y = -2/3x + 4

y = 2/3x + 4

y = 3/2x + 4

y = -3/2x + 4

Multiple Choice

Write the equation for the line.

y= -1x+3

y= 4x+3

y=(1/4)x+3

y= -4x+3

Multiple Choice

Write the equation of the line.

y=(3/5)x+1

y=(3/5)x-1

y=(5/3)x+1

y=(3/5)x+1

Multiple Select

How many solutions can there be for a system of linear equations?

One

None

Infinite

Two

Five

Multiple Choice

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

intersecting lines

parallel lines

skew lines

intersecting lines

Multiple Choice

Solve for x and y.
y = 2/3x - 2
y = -x + 3

(0,3)

(0,-3)

(3,0)

(-3,0)

Multiple Choice

Solve by graphing:
y=5x+3

y=-2x-4

(2,-1)

(-1,-2)

(1,-2)

(-2,-1)

Multiple Choice

Which of the following shows the solution to the system?
y= -1/4x + 4
y = 2x + 2

Multiple Choice

Solve the following system of equations by graphing:

Infinite solutions

(2, -2)

(1, 0)

(3, -4)

Multiple Choice

Solve the following system of equations by graphing:

(4, -4)

(-4, 4)

no solutions

(0, 0)

Multiple Choice

This system has _____ solutions

Infinitely many

Multiple Choice

How many solutions does this system of equations have?

One Solution

No solution

Infinitely Many Solutions

Two Solutions

COAL 12/4

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