Intro to Systems of Equations Substitution

How many solutions does this system have?

y = 2x + 1

y = 4x - 1

• one solution

• no solutions

• infinite solutions

• two solutions

Tags

CCSS.8.EE.C.8B

How many solutions does this system have?

y = -x + 3

y = -x + 5

• One solution

• No solutions

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

How many solutions does this system have?

y = x + 3

y = x − (-3)

• One solution

• No solutions

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

How many solutions does this system have?

• One solution

• No solutions

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)

• (1,3)

• (-3,1)

• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following systems of equations using substitution:

y = 8

y = -4x + 4

• (8, -1)

• (-28, 8)

• (-1, 8)

• (8, -28)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How many solutions does this system have?

y = 2x + 10

y = -2x + 10

• One solution

• No solutions

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

This system is best set up for

• Equal Values Method

• Graphing Method

• Crying Method

• Substitution Method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The solution to a system of equations represents the _____________ of two lines.

• value

• slope

• intersection point

• parallel

Tags

CCSS.8.EE.C.8B

What is the solution to this system of equations?

• (4, -1)

• (-1, 4)

• (-4, 1)

• (-4, -1)

Tags

CCSS.8.EE.C.8B