Systems of Equations/Substitution

Solve:

y=8x+1

y=6x+3

• (1, 9)

• (4, 14)

• (0, 1)

• (2, 4)

Solve:

y = 2x - 10

10x - 5y = 15

• (7 , -15)

• (1, -5)

• All real numbers

• No solution

Solve:

x = -3y - 17

2x + 3y = -7

• (1, -20)

• (3, 0)

• (-5, -2)

• (10 , -9)

- 3x + y = -8

x + y = 4

• (3, 1)

• (1, 3)

• (3, -1)

• (-3, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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?

• One Solution

• No solution

• Infinitely Many Solutions

Solve for x and y.

3x+y=-5

6x+2y=10

• No Solution

• Infinite Number of Solutions

• (2,3)

• (6,-2)

Tags

CCSS.8.EE.C.8B

Solve the system by substitution.

-2x - 2y = 16

y = -8

• (0, -8)

• (-8, 0)

• (-16, -8)

• (-16, -8)

A system of linear equations is...

• Math Magic

• One Equation

• Always more than 2 equations

• A set of 2 or more equations

Solve the system of equations.

2x + 4y = -6

x - y = -12

• (-9, 3)

• (-7 ,5)

• (3, 15)

• (9, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6