linear Equations in two Variables

What is pair of linear equations in two variables?

• a set of two or more linear equations in the same two variables

• a polynomial with three terms

• set of two linear equations in same two variables

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

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

How can you tell if a point is a solution to a system?

• It makes the first equation true.
• The (x,y) coordinates satisfy both equations
• It makes logical sense
• It makes neither equation negative

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

If a pair of linear equations is consistent, then the lines will be 

•  parallel
• always coincident
• intersecting or coincident
•  always intersecting

Tags

CCSS.8.EE.C.8A

The value of c for which the pair of equations cx – y = 2 and 6x – 2y = 3 will have infinitely many solutions is 

• 3 
• – 3 
• –12 
• no value

Tags

CCSS.8.EE.C.8B

If the lines given by 3x + 2ky = 2 and 2x + 5y + 1 = 0 are parallel, then the value of k is 

• –5/4
• 2/ 5 
• 15/4
• 3/2

Tags

CCSS.HSG.GPE.B.5

For what value of k, do the equations 3x – y + 8 = 0 and 6x – ky = –16 represent coincident lines?

• 1/2
• −1/2
• 2
• −2

Tags

CCSS.8.EE.C.8B

The equations 4x + 3y – 1 = 5 and 12x + 9y = 15 represent 

• No  solution
• Infinite many solution
• Unique solution

Tags

CCSS.8.EE.C.8B

The equations 4x + 3y = 5 and 12x + 9y = 15 represent 

• No  solution
• Infinite many solution
• Unique solution

Tags

CCSS.8.EE.C.8B