Finding m & b
Finding slope from 2 points
Slope-Int Form
Parallel and Perpendicular
Point-Slope Form
Standard to Slope-Intercept
100
State the slope and y-intercept from the equation:
y = 2x - 8
m = 2
b: (0 , -8)
100
(6,5) & (5,4) Slope= ?
Slope = 1
100
Given slope and y-intercept, write the equation.
m = -7
y-intercept = 3
y = -7x + 3
100
Fill in the blank:
For two lines to be parallel, their __________ must be the same.
Slopes
100
Put the following in point-slope form
(5, 1); m = 1/5
y - 1 = 1/5 (x -5)
100
Convert to slope-intercept form
2y = -8x + 1
y = -4x + 1/2
200
State the slope and y-intercept from the graph.
m = 1
b: (0 , 0)
y = 1x + 0
or
y = x
200
(3,1) & (8,4) Slope=?
slope = 3/5
200
Given slope and y-intercept, write the equation.
m = -8
b: (0 , -20)
y = -8x - 20
200
What slope would make another linear equation parallel to y=3x+1?
A slope of 3
200
Put the following in point-slope form
(5, -2); m = 2
y + 2 = 2(x - 5)
200
Convert to slope-intercept form
3y - 2x = 9
y = 2/3x + 3
300
What is the slope of a horizontal line?
slope = 0
300
-2
300
Given slope and y-intercept, write the equation.
m = -25
b: (0 , 100)
y = -25x + 100
300
Fill in the blanks:
The slopes of perpendicular lines are ____________ ____________________.
Opposite/Negative reciprocals
300
Put the following in point slope form.
(4, 5), (-3, 8)
y - 5 = -3/7(x - 4)
OR
y - 8 = -3/7(x + 3)
300
Convert to slope-intercept form
y - 4 = -3(x - 3)
y = -3x + 13
400
Identify the slope and y-intercept of the equation.
y-3=x
slope = 1
y-intercept = 3
400
(1,1) & (6,10) Slope=?
slope = 9/5
400
Given slope and y-intercept, write the equation.
m = -1/2
b: (0 , 0)
y = -1/2x
400
What slope would make another linear equation perpendicular to y= -3/2x+7?
A slope of 2/3
400
Put the following in point slope form.
(-1, 7) and (8, -2)
y - 7 = -1(x + 1)
OR
y + 2 = -1(x - 8)
400
Convert to slope-intercept form
0.2x + 0.3y = 0.5
y = -0.67x + 1.67
500
State the slope and y-intercept from the graph.
m = undefined
b: none
500
(-3, 6) & (-3,4) Slope= ?
Slope = Undefined
500
Given the graph, write the equation.
y = 3x + 2
500
What slope would make another segment parallel to a line segment with endpoints (5, 2) and (3, -5).
A slope of 7/2
500
Put the following in point-slope form
(5, 7) and (-1, 3)
y - 7 = 2/3(x - 5)
OR
y - 3 = 2/3(x + 1)
500
Convert to slope-intercept form
y - 8 = -1/2(x + 4)
y = -1/2x + 6
600
Identify the slope and y-intercept of the equation
2y=x-6
slope = 1/2
y-intercept = -3
600
( 2 , 5 ) and ( 3 , 9 ) find the slope.
slope = 4
600
Given the graph, write the equation.
y = -1
600
Find the equation of a line perpendicular to y=4x-1 and through the point (3,11).
y-11=(-1/4)(x-3)
or
y=(-1/4)x+11.75
600
Put the following in point-slope form.
(-1/2, 1/2) and (1/4, 3/4)
y - 1/2 = 1/3(x + 1/2)
OR
y - 3/4 = 1/3(x - 1/4)
600
Convert to slope-intercept form
0.8x + 0.4y = 1.2
y = -2x + 3