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Equations
Slope
Systems-Elimination
Systems-Substitution
Inequalities
100
Solve the following equation: 138=-6(-2-3x)
x=7
100
In the equation y=4x+5, what is the y-intercept?
5
100
Solve by elimination. x-3y=1 2x-6y=2
infinitely many solutions
100
Solve by substitution. x-4y=-17 -3x+2y=11
(-1,4)
100
Solve the following inequality: 19b<-361
b<-19
200
Solve the following equation: 9(x-12)=9(-x+4)
x=8
200
What is the slope of a line perpendicular to the equation y=2x-4
-1/2
200
Solve by elimination. 2x+2y=12 -x+6y=-27
(9,-3)
200
Solve by substitution. -6x+y=23 4x-7y=-9
(-4,-1)
200
Solve the following inequality: -10n<150
n>-15
300
Solve the following equation: -2(4+6x)=-104
x=8
300
Find the slope of a line that goes through the following points: (20,-4) (20,-1)
undefined slope
300
Solve by elimination. -2x-3y=1 -7x-10y=6
(-8,5)
300
Solve by substitution. -4x+2y=-6 3x-3y=-6
(5,7)
300
Solve the following inequality: -4y<12
y>-3
400
Solve the following equation: 107=2+5(-3+4m)
m=6
400
Find the slope of a line that goes through the following points: (-6,19) (6,8)
-11/12
400
Solve by elimination. 10x+8y=-30 -2x-2y=4
(-7,5)
400
Solve by substitution. 7x-4y=-8 -4x+7y=14
(0,2)
400
Solve the following inequality: 8(1-3x)+7x<-94
x>6
500
Solve the following equation: 2(8-11m)=-4(7m-1)
m=-2
500
If you have an equation that has an UNDEFINED SLOPE, is the line going to be vertical (up/down) or horizontal (right/left)?
An undefined slope would give you a VERTICAL line (think about slope=rise over run...so with an undefined slope you're always rising but never running-number in the denominator is a 0!)
500
Solve by elimination. 5x+5y=11 8x+8y=8
no solution
500
Solve by substitution. 12x+6y=5 -4x-2y=-4
no solution
500
Solve the following inequality: 32-8n>-8(7n+2)
n>-1