Quadratic Word Problem Help ASAP 9. A traffic study was conducted on a busy street. In 15-minute intervals from 6:30 a. m. to 8:00
a. m., the number of vehicles that passed a certain point in one minute was recorded in the table
below. Write an equation for the curve of best fit, then approximate the number of cars that passed
the point at 9:15 a. m.
90
75
86
81
x 0 15 30 45 60
1 32 48 71 80 98
*x = minutes past 6:30 a. m.; y = number of cars
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A

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204