Systems quiz prep 11.20.19

Lesly 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)

Solve the following system by graphing.  What is the solution?

• (1, 2)
• (-1, 2)
• (2, 1)
• (2, -1)

Tags

CCSS.8.EE.C.8B

Solve using substitution:

y = -1x - 5

4x - 8y = 4

• (-3, -2)

• (5, -7)

• (3, 9)

• (-5, 4)

Use substitution to find the solution to this system

x= 7 - 2y

2x + y = 5

• (-1,4)

• (4,-1)

• (1,3)

• (3,1)

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

solve the system.

3x+y=-5

6x+2y=10

• No Solution

• Infinite Number of Solutions

• (2,3)

• (6,-2)

What is the y-intercept in the equation 3x + 2y = 4

• (2,0)

• (0, 2)

• (4/3, 0)

• (0, 4/3)

What is the x and y intercept for the following equation ?

4x - 10y = 20

• x - int = (4, 0)

  y-int = (0, -10)

• x-int = (5, 0)

  y-int =(0, 2)

• x - int = (5, 0)

  y int = (0,-2)

• x -int =(0,5)

  y -int = (-2, 0)

Solve the equation:
3x - x + 4 = 4(2x +1)

• no solution
• infinite solutions
• x = 6
• x = 0

Tags

CCSS.8.EE.C.7A

Determine the equation of the line

• y=2x+7

• y=-3x-5

• y=2x-1

• y=2x+6