Unit 4B Review

What are the three methods to solving a system of equations?

• Graphing

• Substitution

• Elimination

• Use a ruler

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

• Intersecting Lines

• Parallel Lines

• Perpendicular Lines

• Coinciding Lines

Solve the system of equations using the graphing method.  What does the graph look like?

• 2 lines that intersect at (3, -3)

• 2 lines that intersect at (2, 3)

• 2 lines that intersect at (-3, -3)

• 2 lines that intersect at (3, 2)

• (6, -6)

• No Solution

• (2, -2)

• (-2, 2)

• 3x = -33

• x = 9

• 3x = -9

• -3x = 33

• (-2, 2)

• (2, -2)

• (3, 1)

• (1, 3)

• 5x + x + 2 = 8

• 5(x + 2) + y = 8

• 5x + x = 8

• 5x + y(x + 2) = 8

If elimination is the method used to solve this system of equations, what is the result of the second step?

• -14y = 128

• -16x = 112

• -14y = 112

• -16y = 112