(01/15) CRM 8th Pd Unit 5 Quiz Solving Systems Subs/Graphing

What is the solution to the system?

• (3, -1)
• (2, -6)
• No Solution 
• (6, -2)

Tags

CCSS.8.EE.C.8A

If a system of equations has no solution, what does the graph look like? 

• one single line
• parallel lines
• skew lines
• intersecting lines

If a system of equations has one solution, what does the graph look like? 

• one single line
• parallel lines
• skew lines
• intersecting lines at a single point

If the solution is infinitely many solutions, the lines will ________?

• intersect at exactly one point
• be parallel
• be on top of each other
• never exist

Solve the system of equations by substitution:
y = 2x
x + y = 9

• (6, 3)
• (3, 6)
• (-3, -6)
• no solution

Solve the system of equations using substitution:
2x + 3y = 8
y = x + 1

• (1, 3)
• (-1, 0)
• (1, 2)
• (2, -1)

Match the system of linear equations to the corresponding graph.

 $y=4x-4$  
 $y=-\frac{3}{2}x+7$  

• 
• 
• 
• 

Tags

CCSS.8.EE.C.8B

• (-3, -8)

• (-8, 3)

• (2, 3)

• (-8, -6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Steffen graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-3,-8)
• (-8,-3)
• (3,-8)
• (8,3)

Tags

CCSS.8.EE.C.8B

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

Tags

CCSS.8.EE.C.8A