Use a graphing calculator or other technology to answer the question. Which quadratic regression equation best fits the data set?

yˆ=38.910x2−4.074+0.155

yˆ=0.155x2−4.074x−38.910

yˆ=0.155x2−4.074x+38.910

yˆ=38.910x2−4.074−0.155
x y
0 39
1 35
2 31
4 26
6 19
10 15
11 12

-232

step-by-step explanation:

i have no

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)