1. Describe what it means if a road has an 8% grade.
2. Would it matter if you subtracted the x-coordinates in the opposite order from teh way you subtracted the y-coordinates?
3. Draw the graph of a line having each slope.
a. a positive slope
b. a negative slope
c. a slope of 10
d. undefined slope
4. Explain why the formula for determining the slope using two points does not apply to vertical lines.
Determine the slope of the line that passes through each pair of points.
5. (7, -4) and (9, -1)
6. (5, 7) and (-2, -3)
7. (0.75, 1) and (0.75, -1)
Determine the value of r so the line that passes through each pair of points has the given slope.
8. (6, 2), (r, -6), m = -4
9. (9, r), (6, 3), m = -1/3
10.
