Quiz - Solving Simultaneous Equations Substitution

What is the first step in solving a system by Substitution?

• Make sure both equations are in standard form.
• Make sure at least one equation is solved for one variable.
• Make sure both equations are in slope-intercept form.
• Make sure both equations can be solved.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution?

• No solution
• (0, 2)
• (0, -4)
• (3, -3)

Tags

CCSS.8.EE.C.8A

Where do these two lines intersect?

• No solution
• (-2, 3)
• (3, -2)
• (2, 3)

Tags

CCSS.8.EE.C.8B

Solve the following systems of equations using substitution:

y = 8

y = -4x + 4

• (8, -1)

• (-28, 8)

• (-1, 8)

• (8, -28)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find the point of intersection of $-4x+4y=8$  and 
 $y=-2x-10$ 

• (-4, -2)

• (12, -34)

• (4, -18)

• (-2, -6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the simultaneous equations:

 $x+y=5$  

 $x-y=1$  

• x=2, y=3

• x=3, y=2

• x=3, y=-2

• x=-3, y=2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the simultaneous equations:

 $a+b=11$  

 $a-b=3$  

• a=7, b = 4

• a=-4, b= 7

• a=4, b = 7

• a=4, b= -7

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find the point where $3x-y=11$ and 

 $x+y=5$ cross. 

• x = 4

  y = 1

• x = 4

  y = -1

• x = -4

  y = 1

• x = -4

  y = -1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How many solutions does the graph have?

• One solution

• No solution

• Infinite solutions

Tags

CCSS.8.EE.C.8B

Give a real-life situation where the point of intersection may be used.

Tags

CCSS.8.EE.C.8B