Chapter 1 Prerequisites for Calculus . Section 1.1 Lines. Calculus – The Study of change R elating the rate of change of a quantity to the graph of a quantity all begins with the slopes of lines.
Example 1: Find the increments of x and y from (4, -3) to (2, 5)
Find the slope of the the two points (1,2) and (4,3)
If line one has slope m1 and line two has slope m2. To be perpendicular then the
The slope of m2 has to be the negative reciprocal of m1.