Systems of Linear Equation Pairs

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

(a)  

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

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

Solve the system of equations. Select ALL POSSIBLE solutions. y ext{ = }x^2+4x-18 and y=2x-3 

• (-5, -13)

• (-2, -22)

• (2, 1)

• (3, 3)

• No solution

Tags

CCSS.HSA.REI.C.7

Which ordered pairs are solutions to the system of equations shown on the graph below? Select all that apply.

• (-3,1)

• (-3,5)

• (0,-1)

• (1,-3)

Tags

CCSS.HSA.REI.C.7

How many solutions will this system have? 

• No solution

• One Solution

• I Don't Know

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8A

If a system of linear equations has one solution, what does this mean about the two lines?

• Parallel lines

• the same line

• Intersecting lines

Tags

CCSS.8.EE.C.8A

Solve this system of equations by graphing.

y = 1/2x + 2

y = -3x + 9

• (2, 3)

• (-2, -3)

• (3, 2)

• (-3, 2)

Tags

CCSS.8.EE.C.8B

Solve the following system by graphing.  What is the solution?

• (-4, 2)

• (4, 2)

• (2, -4)

• (2, 4)

Tags

CCSS.8.EE.C.8B