Use a Riemann Sum with five subintervals of equal length (n = 5) to approximate the area between the graph of f(x) = 9 – 2x and the x-axis on the interval [0, 4]. Choose the representative points to be left endpoints.

The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of × the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?