Solving Linear Equations
3x+12-9x=12-6x
All Real Numbers
12/x = 4/11
x=33
2x-3y=12
x=6
y=-4
Passing through (4,6) with a slope of 1/2
y = 1/2x + 4
Abs(x-8) = 20
x = 28 or -12
5(x+4)=3x-2
x=-11
-9/4 = 3x/20
x=-15
-6x + 9y = -18
x=3
y=-2
Passing through (2,6) and (3,9)
y = 3x
4Abs(3x-8) + 16 = 2
No solution
4(3x+5)=12-2x
x=-4/7
(x+2)/12 = 15/20
x = 7
Find the intercepts AND graph
2x + 5y = 10
x = 5
y = 2
Passing through (3,4) and (5,10)
y=3x-5
Abs(2x+8) - 10 < 2
-10<x<2
3x-5(x+3)=16-4x
x=31/2
4/(5-2x) = 3/(3x-1)
x=19/18
Write in slope-int form and graph
6x + 3y = 15
y = -2x + 5
Through (4,-2) and parallel to y=3/2x + 9
y = 3/2x - 8
Abs(4x-8) < 4
1<x<3
A health club membership costs $19.95 monthly plus $2.75 each time you work out. If you want to spend less than $50 per month, how many times can you workout?
fewer than 11 times.
If a flagpole is 20 feet tall and casts a 6 foot shadow, how long a shadow would a building that is 15 feet tall cast?
4.5 feet
5x - 3y = -9
y = 5/3x + 3
Through (-3,4) and perpendicular to y=3/2x + 9
y = -2/3x + 2
Abs(5x+10) >30
x<-8 or x>4