Solving Linear Equations
solve 3x-7=11
x=6
solve 5x-4>11
x>3
what is slope?
rise/run
solve the system:
x+y=7
2x+y=3
(-4,11)
what type of line do you use when graphing y>x-2?
do you shade above or below?
dashed line
above
solve 4(y+2)=20
y=3
solve -3x+2<=8
x>=-2
what is slope intercept form?
y=mx+b
what is point slope form?
y-y1=m(x-x1)
is the ordered pair (2,3) a solution of the inequality x+y<7?
yes
solve 2x+3=3x-5
x=8
solve 2x+1<3x-4
x>5
write the equation of a line with slope 2 and y-intercept -3
y=2x-3
solve by substitution:
y=3x+3
3x+y=9
(1,6)
is the ordered pair (5,2) a solution of the inequality x-y<=0?
no
solve 5x+1=3x+9
x=4
solve 4x-7>=9
x>=4
what is the slope and y-intercept of the equation y=-x+4
slope: -1
y-intercept: y=4
solve by elimination:
2x+3y=12
4x-3y=6
(3,2)
what type of line do you use when graphing y<=3x+6?
do you shade above or below?
solid
below
solve 7-2x=-3x+8
x=1
solve -2x+5<1
x>2
write the equation of the line passing through (0,1) and (2,5)
y=2x+1
solve the system:
3x+2y=6
x+y=5
what type of line do you use when graphing 3x-y>=6?
do you shade above or below?
solid
below