Question

The equation ​ yˆ=−6.2x2+41.5x−5.6 ​ approximates the average number of cars that pass through an intersection x hours after 3:00 p.m.

What is the best estimate for the average number of cars that pass through the intersection at 5:30 p.m.?

a. 35
b. 47*
c. 59
d. 63
nope, did you use x = 2.5 ??
I did not. Ok, so would it then be 59?
yes
Great thank you! I appreciate your help.

Related Questions

A traffic engineer plans to estimate the average number of cars that pass through an intersection ea... The traffic flow rate (cars per hour) across an intersection is r(t)= 400 + 1000t- 270t^2, where t i... The number of wrecks at a certain intersection varies directly as the number of cars that travel thr... On average, 45 cars pass through a paticular toll booth each hour, At 8 a.m, 75 cars have passes thr...