1. Graphs Using
Slope-Intercept Form
Section 4.5
P. 244

2. • Today we will be looking at equations to
find the slope and the y-intercept.
• Some will be easy to find, other equations
will need to be re-written to get them in the
correct form.

3. Slope-Intercept Form
• We’ve investigated equations in the form
called “slope-intercept” form.
• y = mx + b
• m = the slope
• b = the y-intercept

4. Graph Using Slope-Intercept
Y = 3x + 2
Slope is 3
y-int is (0,2)

5. • Identify the slope and Y-intercept in each
equation below:
y x 2
x 3
y
2
y 4
2 x 4 y 16

6. • Rewrite these equations in the slope-y
intercept form y = mx + b
• 3x + y = 2
• 3x – 3y = 12
• x + 4y = 6
• -x - 15y = 20

7. • Assignment: P. 247 (#3-16)