How many solutions will this system have?

• No Solution

• One Solution

• Infinitely Many Solutions

How many solutions will this system have?

• No Solution

• One Solution

• Infinitely Many Solutions

How many solutions will this system have?

• No Solution

• One Solution

• Infinitely Many Solutions

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• same lines

Tags

CCSS.8.EE.C.8A

If a system of equations has infinitely many solutions, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• same lines

Tags

CCSS.8.EE.C.8A

Solve the system using substitution or elimination.

-6x+y=6

-3x+y=6

• No Solution

• Infinitely Many Solutions

• (0,6)

Solve the system using substitution or elimination.

4x-6y=12

-2x+3y=-6

• No Solution

• Infinitely Many Solutions

• (6,2)

Solve the system using substitution or elimination.
 $y=7x+10$ 
  $y=7x-5$  

• No Solution

• Infinite Solutions

• (10,5)

On Monday Joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. It turns out that the doughnuts were more popular than the coffee. On Tuesday he bought 5 cups of coffee and 10 doughnuts for a total of $14.25. Which equations could be used to determine the cost of the coffee?

• 10x + 5y = 14.25

  5x + 10y = 16.50

• 10x + 5y = 16.50

  5x + 10y = 14.25

• x + y = 10

  5x + 10y = 16.50

• x + y = 5

  5x + 10y = 16.50

A large pizza at Palanzio’s Pizzeria costs $6.80 plus $0.90 for each topping. The cost of a large cheese pizza at Guido’s Pizza is $7.30 plus $0.65 for each topping. Which system of equations could be used to find the number of toppings when both companies cost the same amount? 

• y = 6.80 + .65x
  y=7.30+.90x
• x + y = 6.80
  x + y = 7.30
• y = 6.80+.90x
  y = 7.30 + .65x
• y + .90x = 6.80
  y + .65x = 7.30

Tags

CCSS.8.EE.C.8C