Finding m & b
Slope between two points
Slope-Int Form
Slope-Intercept Form: point and slope OR 2 points
Finding B
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
Write an equation in slope-intercept form for the following line.
(5, -1); slope = 1/5
y = 1/5x - 2
100
State the y-intercept of the equation:
y = 3x - 5
-5
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
Write an equation in slope-intercept form for the following line.
(5, 2); slope = 2
y = 2x - 8
200
What is the y-intercept?
y = 5x + 12
12
300
What is the slope of a horizontal line?
slope = 0
300
(1, 6) (3, 2)
-2
300
Given slope and y-intercept, write the equation.
m = -25
b: (0 , 100)
y = -25x + 100
300
Write an equation in slope-intercept form for the following line.
(4, 5), (-2, 8)
y = -1/2x + 7
300
What is the y-intercept of the equation:
y = 6x
0
400
State the slope and y-intercept from the graph.
m = undefined
b: none
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
Write an equation in slope-intercept form for the following line.
(-1, 7) and (8, -2)
y = -1x + 6
400
Marco's Boat Rental charges a $20 transportation fee and $15 dollars each hour to rent a boat. What is the y-intercept?
20
500
Identify the slope and y-intercept of the equation.
y=x-3
slope = 1
y-intercept = -3
500
(-3, 6) & (-3,4) Slope= ?
Slope = Undefined
500
Given the graph, write the equation.
y = 3x + 2
500
Write an equation in slope-intercept form for the following line.
(3, 7) and (-3, 3)
y = 2/3x + 5
500
Sammy opened his savings account by putting in $50 and he plans to add $25 per month. Which is the y-intercept or initial value?
$50
600
Identify the slope and y-intercept of the equation
y=-x
slope = -1
y-intercept = 0
600
( 2 , 5 ) and ( 3 , 9 ) find the slope.
slope = 4
600
Given the slope -1/2 and y-intercept -2, write the equation.
y=-1/2x-2
600
Write an equation in slope-intercept form for the following line.
(-1, 1) and (-4, 4)
y = -1x
600
What is the y-intercept of a graph with the following points: (1, 6 ), (3, 2), (4, 0)
8