(Blank)
substitution
Solve for
X & Y
Solve for X & Y
100

What's the Quadratic Formula? 

y = -b +/- SqRoot( b)squared - 4( a ) (c) / 2 ( a )

100

6x+8y=-22

y=-5

6x+8(-5)=-22

100

x=5

x+y=12

y=7

100

x= - 7

x+y=12

y = 19


200

What's the square root of 3^2 - (4)(1)(4)

25

200

-2x+7y=-9

y=x-2

-2x+7(x-2)=-9

200

-2x+4y=-16

y=x-2

y= -6

x= -4 

200

y = 2x + 15

y = 5x 

x = 5

( 5, 25 )

300

What is (-4)(-1)(-48)

-192

300

y=2x-3

y=-2x+9

2x-3=-2x+9

300

y=4x-9

x-y=3

y=-1

x=2

300

x^2 + 3x - 4 = 0

x = -4 and x = 1 

400

a line ( rise over run ) on a graph is what kind of equation?  

linear equation

400

y=3x+2

y=-3x+8

3x+2=-3x+8

400

-2x+7y=-9

y=x-2

x=1

y=-1

400

2y + 6 = x 

y - 9 = x

( - 24 , -15 )

500

a parabola is what kind of equation?

quadratic


500

y=4x-9

x-y=3

x-(4x-9)=3

500

y=x^2+2x-8

y= -2x+4

( 2, 6)

500

2x^2 + 18x = -40

Solve for x1 & x2 

( - 8, -10 )