Identifying Slope & Y-Intercept
Finding slope from 2 points
Find Y-Intercept
Write Slope-Intercept Form Equation
Given m and b
Given m and b
Write Slope-Intercept Form Equation
Given Points
Given Points
100
Identify the slope and y-intercept from the following equation:
y = 2x - 8
m = 2
b: -8 or (0 , -8)
100
Find the slope
(6,5) & (5,4)
Slope = 1
100
m = 7
(0,4)
4
100
m = -7
y-intercept = 3
y = -7x + 3
100
(5, -1); slope = 1/5
y = 1/5x - 2
200
Identify the slope and y-intercept from the graph then write the equation of the line.
Slope (m) = 2/1 or 2
Y-Intercept (b) = -1 or (0, -1)
Equation of the Line (y = mx + b): y = 2x - 1
200
Find the slope
(3,1) & (8,4)
slope = 3/5
200
m=-2
(2,3)
7
200
m = -8
b: (0 , -20)
y = -8x - 20
200
(5, 2); slope = 2
y = 2x - 8
300
What is the slope of a horizontal line? ↔
The slope of a horizontal line is 0!
300
-2
300
m=-5
(-1,5)
0
300
m = -25
b: (0 , 100)
y = -25x + 100
300
(4, 5), (-2, 8)
y = -1/2x + 7
400
Identify the slope and y-intercept from the graph then write the equation of the line.
Slope (m) = UNDEFINED
Y-Intercept (b) = NONE
Equation of the Line (y = mx + b): x = 4
400
Find the slope
(1,1) & (6,10)
slope = 9/5
400
m=2/3
(6, 7)
3
400
m = -1/2
b: (0 , 0)
y = -1/2x
400
(-1, 7) and (8, -2)
y = -1x + 6
500
Identify the slope and y-intercept of the equation.
-2y = x + 10
slope = -1/2
y-intercept = -5
500
Find the slope
(-3, 6) & (-3,4)
Slope = Undefined
500
m=-1/4
(2,-1/2)
0
500
m = -2/3
b: (0,-3)
y=-2/3 x - 3
500
(3, 7) and (-3, 3)
y = 2/3x + 5