Solving Systems of Equation Quiz Review

Using SUBSTITUTION, solve for x and y:
2x − 3y = −1
 y = x − 1

• (-2,-3)
• (0,-1)
• (3,4)
• (4,3)

Using SUBSTITUTION, solve for x and y:
5x + 3y = 7
y = 4

• (4,1)
• (4,-1)
• (1,4)
• (-1,4)

Using ELIMINATION, solve for x and y:

4x - 2y = 7
 x + 2y = 3

• x = 2, y = 2
• x = 1/2, y = 2
• x = 2, y = 1/2
• x = 2, y = -2

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

• intersecting lines
• parallel lines
• skew lines
• the same line (coinciding lines)

If a system of equations has infinitely many solutions, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• the same line (coinciding lines)

Using ELIMINATION, solve for x and y:
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Using ELIMINATION, solve the system given:
3x - y = 7
2x + y = 3

• (-1,2)
• (5,4)
• (4,5)
• (2,-1)

Using SUBSTITUTION, solve the system. Record your answer as (x,y).

Solve using ELIMINATION:
-x+2y=17
2x+2y=-10

• ARN
• (-9,4)
• (-9,-4)
• (9,-4)