Question

6. Robi has run the first 4 miles of a race in 30 minutes. She reached the 6-mile point after 45 minutes. a. Without graphing, is the slope of the line that represents this situation positive, negative, zero, or undefined? b. What is the slope?

Answer 1

a. The slope of the line that represents this situation is positive.

b. m = (45 - 30)/(6 - 4) = 15/2 = 7.5 miles per minute