Do Now

1
Do Now

• Given y7x - 1
• What is the slope?
• What is the y-intercept
• Given f(x)2 - 3x
• What is the slope?
• What is the y-intercept

2
Target
I can graph a line given the slope and
y-intercept.
Designed by Skip Tyler, Varina High School
3
Slope
4
Graphing with slope-intercept

1. Start by graphing the y-intercept (b 2).
2. From the y-intercept, apply rise over run using
   your slope.rise 1, run -3
3. Repeat this again from your new point.
4. Draw a line through your points.

-3
-3
1
1
Start here
5
Graph the following linear equation using slope
and y-intercept.
Steps
y
1) Find the slope and y-intercept.
3
2
x
2) Plot the y-intercept.
-2
3) Plot the slope.
-2
-3
2
m
or m
-3
3
4) Draw line through points.
6
(4, 1)
4
SOLUTION
3
The equation is already in slope-intercept form.
(0, 2)
The y-intercept is 2, so plot the point (0,
2) where the line crosses the y -axis.
(0, 2)
(4, 1).
Draw a line through the two points.
7
Which is the graph of y x 2?

1. .
2. .
3. .
4. .

8
Exit Ticket

• I first thought but now I realize

9
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