Y If line b is perpendicular to line a, and line cis
perpendicular to line a, what is the slope of line c?
5
a
b
4
m =
3
2
X
-5 4 3 2
3
4.
5
-2
--4
-5

City l has a temperature of −3 °f. city m has a temperature of −7 °f. use the number line shown to answer the questions: number line from negative 8 to positive 8 in increments of 1 is shown. part a: write an inequality to compare the temperatures of the two cities. (3 points) part b: explain what the inequality means in relation to the positions of these numbers on the number line. (4 points) part c: use the number line to explain which city is warmer. (3 points)