Home > CCA > Chapter Ch2 > Lesson 2.1.4 > Problem 2-42
2-42.
Without graphing, find the slope of each line described below.
A line that goes through the points
and . Use a slope triangle or another method to determine the slope of the line.
Another method is to first subtract the
-values and the -values from each other.
Substitute the differences into the slope formula.
A line that goes through the origin and the point
See part (a).
A vertical line (one that travels “up and down”) that goes through the point
. Vertical lines have an undefined slope.
A line that goes through the points
and .
See part (a).