13.1 Notes
Date: ____________________________
Line
Slope
Circle
x-intercept
y-intercept
To make a graph, we frequently construct a _________________________. We choose values for either x or y and then
__________________________ each value in the equation to find the other member of the ___________________ pair.
Ex. 1
1
x − 1.
4
a. Fill in the chart and plot the ordered pairs.
1
y = x −1
x
4
-4
Graph y =
0
4
b. What is the slope of the line?
c. What is the x-intercept of the line?
d. What is the y-intercept of the line?
Ex. 2
Graph x = −3 on the axis above. What is the slope of this line?
Ex. 3
Graph y = 5 on the axis above. What is the slope of this line?
Ex. 4
What is the slope of the line segment connecting the following points?
a. (2, 5) & (4, 11)
Ex. 5
What is the slope of the line shown on the graph?
b. (5, -1) & (5, 7)