Finals Algebra project

Substitution Method

y=-2x

-2x+4y=20

• x=4, y=-2

• x=-2, y=4

• (-2,4)

• (4,-2)

Substitution Method

y=4x-5

2x-5y=25

• x=0, y=-5

• x=-5, y=9

• (0,-5)

• (-5,9)

2x+7y=34

5x-4y=-1

• 2,1

• (3,4)

• 4,3

• 5,2

2x+y=7

y=7-2x

• (8,0)

• (5,9)

• (1,-4)

• (4,1)

What is the solution of the graph

• (2,1)

• 7,9

• 1,2

• -2,1

What is the system of equation in this graph

• (1,-3)

• (-1,3)

• 3,7

• 2,9

Find the equation of the graph

• (3,-1)

• (-1,3)

• 2,8

• 4,1

Solve the equation of the graph

• (1,3)

• 3,1

• -1,3

• 5,7

2y+7x = -5
5y-7x= 12

• (1,-1)

• 2,3

• 2,-1

• 1,3

-9y+4x - 20=0
-7y+16x-80=0

• x = 5, y = 2

• x = 5, y = 10
• x = 5, y = 0

• x = 4, y = 8