Describe what the domain of a relation is.
The input
The x coordinates
How do you know if a relation is a function?
Each x is paired with only one y
Find the slope between the points (5,1) and (9,-7)
m= -2
What is the slope of
y=2x-2
m=2
Describe what the range of a relation is.
The output
The y coordinates
Is this a function?
(2,1),(3,8),(4,12),(5,15)
Yes
Find the slope between the points (4,-6) and (-4,2)
m= -1
what is the y intercept of
y=-3x-5
-5
Find the domain of the following relation
(-2,1),(0,3),(2,5),(4,8)
D={-2,0,2,4}
Is this a function?
(-2,0),(-1,0),(1,0),(2,0)
Yes
Find the slope between the points (5,-2) and (-1,2)
m=-2/3
what is the y intercept of
y=4x+12
12
Find the range of the following relaiton.
(1,3),(2,4),(3,5),(4,6)
R={3,4,5,6}
Use the vertical line test to determine if the following is a function.

Yes it is a function
Find the slope between the points (-5,8) and (5,8)
m=0
what is the slope of
y=-1/2x-5
-1/2
State the domain and the range of the following relation
(-3,-2),(-1,0),(2,4),(5,9)
D={-3,-1,2,5}
R={-2,0,4,9}
Use the vertical line test to determine if the following is a function.

Not a function
What is the formula for find the slope of a line given 2 points?

write the equation in slope intercept form of a line with slope of 5 and a y intercept of 15
y=5x+15