Unit 10 Review

What is the solution?

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

How many solutions?

• One Solution
• No solution
• Infinitely Many Solutions

Solve the system of equations.
y = 4x+1
3x + 2y = 13

• (1, 5)
• (5, 1)
• (0.25, 2)
• ∅

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

Solve the following system
x + 9y = 8
-6x - 9y = -3

• (1,-1)
• (1,1)
• (-1,1)
• (-1,-1)

The slopes of parallel lines are...

• the same

• opposite

• always different

5x - 4y = =-16
x+ 2y = -6

• (-4,-1)
• (5,-1)
• (-5,-1)
• (4,1)

2x - 3y = 6
7x - 3y = -9

• (-3,-4)
• (3,4)
• (-4,-3)
• (4,3)

x = - 3
2x + 3y = 6

• (4,3)
• (-4,3)
• (-3,4)
• (3,-4)

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

• intersecting lines
• parallel lines
• skew lines
• intersecting lines