Solving Systems 2

Steffen graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-3,-8)
• (-8,-3)
• (3,-8)
• (8,3)

How many solutions will this system have? 

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

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

Solve this system of equations using substitution:

2x − 3y = −1

y = x − 1

• (-3,4)

• (3,4)

• (4,3)

• (-3, -4)

Solve this system of equations using substitution:

−5x + y = −3

3x − 8y = 24

• (3,-1)

• (0,-3)

• (3,0)

• (-0,0)

Solve this system using substitution:

−3x − 4y = 2

3x + 3y = −3

• (-2,1)

• (1,-2)

• (2,1)

• (2,-1)

Solve by using elimination:

x − y = 11

2x + y = 19

• (10,-1)

• (-10, -1)

• (10,1)

• No solution

Solve by using elimination:

−7x + y = −19

−2x + 3y = −19

• Infinite number of solutions

• No Solution

• (-2,-5)

• (2,-5)

Solve by elimination method:

2x + 8y = 6

−5x − 20y = −15

• Infinite number of solutions

• No solutions

• (0,0)

• (9,-5)

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)