Systems of Equations

These two lines intersect at _____.

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

What is the solution to this system?
y= 4x + 3
2x - 3y = 21

• (3,-9)
• (-3,-9)
• (-3,9)
• (0,1)

What is the solution to this system?
x= 7 - 2y
2x + y = 5

• (-1,4)
• (4,-1)
• (1,3)
• (3,1)

Solve using substitution.
x + 2y = -3
x - y = -12
What is the sum of x and y?

• -6
• -2
• 18
• 15

Solve using substitution.
2x - 2y = 2
y = -5x + 14
What is the sum of x and y?

• 9
• 4
• 6.5
• 3.25

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

1) Solve by elimination. 
     -4x-2y=-12
      4x+8y=-24

• (6,-6)
• (-6,6)
• (6,6)
• (-6,-6)

Does the system have one, none or infinite solutions?
8x + 4y = 12
y = -2x + 3

• (0,3)
• (3,0)
• No solution(parallel lines)
• Infinitely many solutions

Solve the system of linear equations, using elimination.
HINT: You may have to multiply one equation in order to have the variables "match".

• (0, -1)
• (0, -2)
• (0, -3)
• (0, -4)

Solve the system:
7x + 2y = 24
8x + 2y = 30

• (−9, 6)
• (−6, 33)
• (−6, −39)
• (6, −9)