(01/29) 7th Pd Solving Systems Review(Graded Assignment)

• Infinite number of solutions

• (0, 7)

• (-5, -7)

• (5, 7)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

• (-2, -1)
• (1, -2)
• (-2, 1)
• (-1, -2)

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.C.6

How many solutions does the graph have?

• One solution

• No solution

• Infinite solutions

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

How many solutions does the graph have?

• One solution

• No solution

• Infinite solutions

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Give the solution to the system

• (3,1)
• (1,3)
• (-1,3)
• a hoppy hippo

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Solve the following system using the substitution strategy.
 -7x - 2y = -13
X = 2y + 11

• (5,6)
• (3,-4)
• (-4, 4)
• (-3, -4)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve by elimination:

3x+7y=23

-3x-7y=-17

• No solution

• (0, 3)

• (-3,3)

• (3,3)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve by elimination:
-x+2y=17

2x+2y=-10

• ARN
• (-9,4)
• (-9,-4)
• (9,-4)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Candido is solving the system of equations using elimination. His work is shown. What should be his next step?

• $-2\left(3\right)-9y=-25$

• $-2\left(3\right)-9\left(3\right)=-25$

• $-4x-9\left(3\right)=-23$

• $-4\left(3\right)-9\left(3\right)=-23$

Mackenzie is solving the system of equations using substitution. Her work is shown. What should be her next step?

• Nothing, she is done.

• Plug back into one of the equations to find x.

• Write her solution as an ordered pair

• She needs to check her work to make sure she made no mistakes.