1. Writing Linear Equations from a Set of Coordinates
2.22

2. Do Now
Complete #1
a) y = 2x + 1
b) 𝑦=− 3 2 𝑥+1
c) y = 2x + 3

3. 2) What about the equation for this line?
What’s different about this graph that doesn’t allow us to use our shortcut?
There must be another way!

4. #2
Calculate the slope.
m = 8 5
What’s the y-intercept?
b = 4.?????

5. #2
Remember the pizza!
We can use the point-slope form of a line to write a linear equation when we don’t know the y-intercept.
Let me demonstrate how to do this on the board!

6. Group Time! Work out the rest of the problems with your teammates…
AS A TEAM!
Pool your brain power!

7. Closure
Let’s do #5 F together on the board.