Understanding
This lesson helps students to use the point slope form of a line to move from graphs of proportional relationships to graph of any line.
What to look for
Student discussion may provide an opportunity to discuss why the denominator of a fraction cannot be zero.
Sample Assessment
Consider the graph of a line.
Which equation has a slope greater than the slope for the line shown?
a. y=3x−1
b. y=x2+4
c. y=2x+2
d. y=x3−3
Answer: a