Day 3

Students will define the y intercept in math as well as translate it to real world meaning. The y intercept is the point on a graph that crosses the y axis. The real world meaning of the y intercept is when the x value is at zero or the start of your experiement.

Quiz:

1. How do you find the y intercept?
2. What axis does the y intercept cross?

3. What is the y intercept in the picture above?


Answer Key:
1. To find the y intercept, you take a point on the graph, for example (3,4), and you plug those numbers into the equation y=mx+b with 3 being x and 4 being y.
2. The y intercept crosses the y axis.
3. The y intercept in the picture aboce is (0,3).