Finding m & b
Slope-Intercept Form: slope and y-intercept OR graph
X and Y Intercepts
Slope-Intercept Form: point and slope OR 2 points
Function Notation
100
State the slope and y-intercept from the equation:
y = 2x - 8
m = 2
b: (0 , -8)
100
Given slope and y-intercept, write the equation.
m = -7
y-intercept = 3
y = -7x + 3
100
State the x and y-intercept of the equation.
-3y - 2x = -6
x-int (3, 0)
y-int (0, 2)
100
Write an equation in slope-intercept form for the following line.
(5, -1); slope = 1/5
y = 1/5x - 2
100
Find the domain and range of the following set:
{(9, 1) (-8, 0) (-1, 7) (0, 6) (-5, -7)}
D: {-8, -5, -1, 0, 9}
R: {-7, 0, 1, 6, 7}
200
State the slope and y-intercept from the graph.
m = 1
b: (0 , 0)
200
Given slope and y-intercept, write the equation.
m = -8
b: (0 , -20)
y = -8x - 20
200
State the x and y-intercepts of the equation.
-2x + y = 25
x-int. (-25/2, 0)
y-int. (0, 25)
200
Write an equation in slope-intercept form for the following line.
(5, 2); slope = 2
y = 2x - 8
200
Identify the domain.
(-3,1]
300
What is the slope of a horizontal line?
slope = 0
300
Given slope and y-intercept, write the equation.
m = -25
b: (0 , 100)
y = -25x + 100
300
What is the x and y-intercepts of the equation?
-2y + 5x = -10
x-int. (-2, 0)
y-int. (0, 5)
300
Write an equation in slope-intercept form for the following line.
(4, 5), (-2, 8)
y = -1/2x + 7
300
What is the domain of the following? Think about what domain is...
{2, 3, 5, 7, 9}
400
State the slope and y-intercept from the graph.
m = undefined
b: none
400
Given slope and y-intercept, write the equation.
m = -1/2
b: (0 , 0)
y = -1/2x
400
Given the equation
-3x + 4y = -24
x-int. (8, 0)
y-int. (0,-6)
400
Write an equation in slope-intercept form for the following line.
(-1, 7) and (8, -2)
y = -1x + 6
400
Given f(x)=25 + 4x
Find f(5)
45
500
Identify the slope and y-intercept of the equation.
-2y = x + 10
slope = -1/2
y-intercept = -5
500
How would you graph this equation?
2y = -x - 4
Start from b= -2 and go down 1 and 2 to the right.
500
What are the x and y-intercepts of the following line?
12y =3x + 24
x-int. (-8, 0)
y-int. (0, 2)
500
Write an equation in slope-intercept form for the following line.
(3, 7) and (-3, 3)
y = 2/3x + 5
500
What is a function?
A relation that assigns exactly one input to each output
OR
For every x value, there is only one unique y value
600
Identify m and b
(-3,5), and (-3, -9)
m is undefined;
no y intercept
600
Given the graph, write the equation.
y = -1
600
State the x and y-intercepts.
7x + 3y = -21
x-int. (-3, 0)
y-int. (0, -7)
600
Write an equation in slope-intercept form for the following line.
(-1, 1) and (-4, 4)
y = -1x
600
The set of all inputs is called ______, and the set of all outputs is called ______.
domain
range