Solve Systems of Linear Equations by Substitution

If a system of linear equations has no solution, what type of lines are created?

• Parallel lines

• Lines that intersect

• Same line

• Consistent systems

Tags

CCSS.8.EE.C.8A

How many solutions does a system of linear equations have where the lines intersect?

• No solution

• One solution

• Infinitely many solutions

• Two solutions

Tags

CCSS.8.EE.C.8B

What graph is created when there are infinitely many solutions?

• Parallel lines

• Lines that intersect

• Same line

• Parabola

Tags

CCSS.8.EE.C.8A

What is the first step in solving a system of linear equations by substitution?

• Rewrite each equation in the form y=mx+b

• Solve for x

• Check your answer

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

True or false: a solution to a system of linear equations is in the form of an ordered pair.

• True

• False

Tags

CCSS.HSA.REI.C.9

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

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.

x + 2y = 2

x = -4y + 2

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by Substitution:

y = -6

-3x - 6y = 24

• (6, 6)

• (6, -6)

• (4, -6)

• (-6, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by Substitution:

y=3x+14

y=-4x

• (2,-8)

• (-14,56)

• (-2,8)

• (8,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

x - 3y = -13
4x + 2y = 4

• (1, 4)
• (-1, -4)
• (-1, 4)
• (1, -4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6