slope
what is the slope of this equation?
y=-2x=5
the slope is -2
what is the y-intercept of this equation?
2x-5y=10
the y-intercept is 2
what is this equation in slope-intercept form?
6x+2y=24
y=-3x+12
what is this equation in point-slope form?
(2,9); m= -2
HINT y-y1=m(x-x1)
*the number 1 is small*
y-9=-2(x-2)
What form do we use to graph a linear equation?
y = mx + b
what is the slope of this equation?
y=-3x+7
the slope is -3
what is the y-intercept of this equation?
y=3x-1
the y-intercept is -1
what is this equation in slope-intercept form?
2x+3y=12
y=-2/3x+4
what is this equation in point-slope form?
(-3,-1); m=4
HINT y-y1=m(x-x1)
*the number 1 is suppose to be little *
y+1=4(x+3)
When graphing linear equations, where do we begin?
We begin at the y-intercept.
what is the slope of this equation?
x+2y=6
the slope is -1/2
what is the y-intercept of this equation?
2x+y=8
the y-intercept is 8
what is this equation in slope-intercept form?
2x+3y=15
y=-2/3x+5
What is the formula for point-slope form .
y-y1=m(x-x1)
(the number 1 is small)
Identify the slope of the following equation. y = mx + b
the variable m
what is the slope of this equation?
y-4x=2
the slope is 4
what is the y-intercept of this equation?
y=-5x+4
the y-intercept is 4
what is this equation in slope-intercept form?
4y+3x=16
y=-3/4x+4
fill in the blank
(m is the ___ and b is the ________.)
m is the slope and b is the b is the y-intercept .
Identify the slope of the following equation. y = 2x + 3
slope is 2
what is the slope of this equation?
2x-5y=10
the slope is 2/5
what is the y-intercept of this equation?
9x+10=10y
the y-intercept is 1
what is this equation in slope-intercept form?
4y=-3x+16
y=-3/4x+4
Write the equation of the line with a slope of 2 that goes through the point (4,-3) in point-slope form and solve .
y+3=2(x-4)
Name one way to describe slope.
rate of change
rise over run
y - y x - x
slope = m in y = mx + b