Solve Systems of Equations

Graph. x = 1

• a
• b
• c
• d

Solve the system of equations by graphing.
y = -4x + 5
y =  3x - 16

• (-3, -25)
• (3,-7)
• (11, 17)
• (21, 47)

Solve by substitution method
y = x + 24
y = -7x

• -3,21
• 3,21
• 2,21
• -2,0

Graph. y = -4

• a
• b
• c
• d

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

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

Solve by graphing
y = -x - 10
y = 4x

• 2,8
• -1,-8
• -2,-8
• 0,8

How many solutions does this system of equations have?

• One Solution
• No solution
• Infinitely Many Solutions
• Two Solutions

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

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

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

• Parallel lines
• the same line 
• Intersecting lines

Which is the graph of y=-x+2?

• A
• B
• C
• D