Linear Systems

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

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

Tags

CCSS.8.EE.C.8B

The solution to a system of equations is any ordered pair that makes both equations true. 

• TRUE
• FALSE

Tags

CCSS.8.EE.C.8B

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph
• Don't touch
• Intersect
• Exist

Tags

CCSS.8.EE.C.8B

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

If b=6 and m=3, what is the correct slope intercept equation? (a)  

• y=3x+6
• none
• y=3x-6
• y=6x+3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

y = -x - 3

SLOPE is

• 3

• 1

• -1

• -3

Answer explanation

Slope is always a coefficient of x.

Tags

CCSS.8.EE.B.5

y = -4x - 3

SLOPE is

• 3

• $\frac{4}{1}$

• $\frac{4}{-1}$
  

• -3

Answer explanation

Slope is always a coefficient of x.

Tags

CCSS.8.EE.B.5

y = -x - 3

Y-intercept is

• 3

• 1

• -1

• -3

Answer explanation

Y-intercept is always a constant.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

 $y\ =\ x\ -\ \frac{3}{4}$  
Y-intercept is

•  $\frac{3}{4}$  
  

• 1

• -1

•  $-\frac{3}{4}$  
  

Answer explanation

Y-intercept is always a constant.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3