Solving by Graphing and Substitution

How many solutions will this system have?

• No Solution
• Infinitely Many Solutions
• No Clue
• One solution

Tags

CCSS.8.EE.C.8B

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8A

-4x+y=3
x+y=-2
find the solution 

• (3,7)
• (0,0)
• (-1,-1)
• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to a systems of equations? 

• The point or points where they intersect
• What the lines have in common
• Either a single point, infinite number of points or no points
• ALL OF THE ABOVE 

Tags

CCSS.8.EE.C.8B

Solve the
system of equations
by graphing.
-2x + 5y = 10 
 y = x + 5

• (-5, 0)
• (5, 0)
• (0, 5)
• (0, -5)

Tags

CCSS.8.EE.C.8B

Does the system have one, none or infinite solutions?

y = 2x -11

-3y = -6x -15

• One

• None

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

The first step in solving using the substitution method is __________.

• get x by itself
• get y by itself
• get either variable by itself
• add the equations together

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution. 
-5x - 4y = -9
y = 6

• (3, 6)
• (6, -3)
• (-3, 6)
• (6.8, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations using substitution:
y = 2x + 5
2x + 2y = 4

• (1, 7)
• (7, 1)
• (2, 9)
• (-1, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

In 3x + 2y = 10    and    x - 5y = 18, which variable should you isolate first?

• The x in the first equation
• The y in the first equation
• The x in the first equation
• The x in the second equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6