Systems of equations

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

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

What is the solution?

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

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• the same line 
• Intersecting lines

Solve the system of equations. Use Substitution.

y = 4x+1

3x + 2y = 13

• (1, 5)
• (5, 1)
• (0.25, 2)
• ∅

Solve for x and y Use Substitution

y = 2x + 1

y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Select the ordered pair which is a solution of the following system of equations:
5x + 7 = 4y
2x - 1 = y + 1

• (5,8)
• (0,0)
• (-1,-5)
• (11,40)

Is (2,3) a solution for this system of equations?
y=3x
y=7x-8

• Yes
• No
• Maybe
• Idk

Solve this system of equations by graphing.

y = 1/2x + 2

y = -3x + 9

• (2, 3)

• (-2, -3)

• (3, 2)

• (-3, 2)

Solve the system by graphing:
y = 6x - 4
y = -x + 3

• (1, 2)
• (2, 1)
• (4, 5)
• (2, 4)

Graph both equations. What point do they intersect at?
y = x + 3
y = -x - 1

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