Solving Systems of Equations

Solve By Graphing

100

y = 1/3 x + 4 y = -1/3 x +2

What is (-3,3)

200

y = -1 y = -5/4 x +4

What is (4,-1)

300

y = 5x-2 y = -x+2

What is (-1,3)

400

-4x-y =-4 y = -3x+5

What is (-1,8)

500

x-2y=-8 3x+y=-3

What is (-2,3)

Solve By Substitution

100

y=x y =2x+2

What is (-2,-2)

200

y = x+1 y = 4x-5

What is (2,3)

300

4x-2y=4 y=4x+2

What is (-2,-6)

400

y = -6x-3 6x-5y=-21

What is (-1,3)

500

x-3y =9 x+y =1

What is (3,-2)

Solve By Elimination

100

x+y =-2 x-y = -4

What is (-3,1)

200

4x+5y=22 -6x+5y =-8

What is (3,2)

300

10x +7y =-3 8x+7y =-15

What is (6, 9)

400

-3x-3y = -9 5x+12y =-13

What is (7,-4)

500

10x + 20y =20 16x+32y=16

What is no solution?

Solve by Any Method

100

The sum of two numbers is 16. Their difference is 2.

What is 7 and 9

200

The difference of two numbers is 4. Their sum is 16.

What are 10 and 6?

300

x + 10y =-28 -x -8y =24

What is (-8 ,-2)

400

y = -x-2 y = 2x+1

What is (1,-3)

500

7x-7y =-7 y = -6x +22

What is (3,4)

Hodgepodge

100

What famous composer lost his hearing?

Beethoven

200

In what year did hurricanes begin getting names?

1950

300

How long does it take to recover from giving blood?

48 hours

400

Who was Alexander the Great's mentor?

Aristotle

500

What river runs through Wichita Kansas?

The Arkansas River