Solve Systems of Equations by Graphing, Elimination and Substitution

• (4, 9)

• (9, 4)

• Infinitely Many Solutions

• No Solution

Tags

CCSS.8.EE.C.8B

Two numbers have a sum of 217 and a difference of 85. What is the larger of the two numbers?

Tags

CCSS.8.EE.C.8C

Two numbers have a sum of 217 and a difference of 85. What is the smaller of the two numbers?

Tags

CCSS.8.EE.C.8C

Select the best option below for solving this system of equations using elimination.

• Multiply the first equation by -1.

• Multiply the first equation by -2.

• Solve the second equation for y, then substitute that expression in for y in the other equation.

• No changes are necessary - this system is perfectly setup for elimination.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

You decide to solve the below system of equations using elimination and first want to eliminate the x variable. Which option below would be the best first step? -4x+9y=-17 3x-4y=10

• Multiply the first equation by 4 and the second equation by 9.

• Multiply the first equation by -3 and the second equation by 4.

• Multiply the first equation by 3 and the second equation by -4.

• Multiply the first equation by 3 and the second equation by 4.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The below system of equations is setup nicely to use the _____ method.

• substitution

• elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which answer below shows the first step in solving the below system of equations using substitution?

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which of the following situations would result in no solution to a system of linear equations?

• Identical Lines

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

Tags

CCSS.8.EE.C.8A

Which method would be best (quickest) for solving the system below:
x + y = 11
3x - 4y = -2

• Substitution

• Elimination

• Graphing

• None of these

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system:
x + 6y = 17
x - 3y = 8

• (5, 2)

• (11, 1)

• (1, 11)

• no solution

Tags

CCSS.8.EE.C.8B