LQ.4.14 - Systems by Substitution

Solve the system by substitution.

What is the y-coordinate of the solution?

5x + 4y= −14

y = −7x − 15

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.

y = 2x -11

-3y = -6x -15

• (-1.5,-4)

• (1.5,4)

• No solution (parallel lines)

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

Solve the system by substitution.

What is the x-coordinate of the solution?

x + 2y = 2

x = -4y + 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.

y = -6x + 5

-2x + y = 5

• (-3, -6)

• (-6, 3)

• (0, 5)

• (-3, 5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.

y = -3x + 11

y = -6x - 13

• (-8, 35)

• (8, -13)

• (1, 8)

• (2, 13)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6