November 15, 2016
We can write an equation to describe a line.
We use the formula:
y=
The variable m represents _________________.
Circle the slope in each equation.
y = 7x
y = 2/3x
What does this equation look similar to?
What conclusion can we draw?
y = 0.5x
November 15, 2016
Use the triangle method to find the slope of the line below.
m=
Now, use the slope to write an equation for the line.
November 15, 2016
Use the two points given to find the slope of the line.
Write out the 2 coordinate pairs.
(
) and (
)
Set up the equation.
m=
Now, use the slope to write an equation for the line.
November 15, 2016
We can graph lines from a given equation.
1. Start at _____________.
2. From here, move up the correct number of spaces
according to the ____________.
3. Plot your next point and repeat.
y = 1/2x
W
h
slo at d
oe
pe
s
te
ll m the
e?
November 15, 2016
WHAT DO I DO WITH A NEGATIVE SLOPE?!?!
The "sign" of a slope tells us ______________________
_________________________.
A __________________ slope looks like this:
A __________________ slope looks like this:
November 15, 2016
Try it!
Book pg. 132