Solving Systems Using Elimination

• (1, 4)

• (4, 1)

• (1, -4)

• (-4, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (-5, -9)

• (9, 5)

• (5, 9)

• (-9, -5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

To eliminate a variable in the system, should you add the equations or subtract the equations?

• Add

• Subtract

• Neither

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which variable would be easiest to eliminate?

• x

• y

• Neither

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When you solve the system of equations, what is the solution for y?

• 8

• -1

• 1

• -8

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The first step in using the Elimination Method to solve a system of equations is to

• get both equations in slope-intercept form.

• look for a zero pair.

• get the x term or y term isolated.

• identify the m and the b of the equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system using Elimination.

-4x - 5y = 10

8x + 6y = 4

• (6, 5)

• Infinitely Many Solutions

• (-6, -5)

• (5, -6)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Which method would be the easiest to use to solve the following system of equations?

8x + 4y = 12

y = -2x + 3

• None

• Elimination

• Graphing

• Substitution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6