Systems review

Solve the system by GRAPHING
x - y = 6
y= 2x - 5

• (1,3)
• (-1,3)
• (-1,-7)
• (1,-7)

Solve the system by ELIMINATION
3x + 5y = 46
4x + 3y = 43 

• (7,5)
• (8,2)
• (-9,-2)
• (0,50)

Solve the system by SUBSTITUTION
x  = 5y+5
-2x + 4y = -16

• (10, 1)
• (4, 2)
• (-10, 1)
• (-4,2)

Which of these is NOT one of the methods I showed you for solving systems of linear equations?

• Elimination
• Substitution
• Graphing
• Frustration

These two lines intersect at _____.

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

Tags

CCSS.8.EE.C.8B

Determine if (2, 3) is a solution for the system of equations.
x + y = 5
2x - y = 7

• yes
• no

The solution to this linear system is:

• (4, 3)
• (3, 4)
• (-4, 3)
• No solution

Tags

CCSS.8.EE.C.8B

Solve for x and y using substitution.
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

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

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

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)