Homework #4- Week 5- intro to systems

How many solutions are there to the equation

3x-2 = 5x+12

• 0= 14

  no solutions

• 0= 0

  infinite solutions

• x= -7

  1 solution

• x=7

  1 solution

Tags

CCSS.8.EE.C.7A

How many solutions are there to the equation

12x+15 = 12x+9

• 0= -6

  no solutions

• 0= 0

  infinite solutions

• x= -6

  1 solution

Tags

CCSS.8.EE.C.7A

Solve for x

4x+3= 2x+17

• 7

• 14

• 20/6 or 3.3

• 14/6 or 2.3

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 = 2x + 10

y = -2x + 10

• 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 + 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?

y = 13x + (-12)

y = 7x – 12 + 6x

• One solution

• No solutions

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

How many solutions does this system have?

y = -2x + 5

2y = -4x

• 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