The number of people attending graduate school at a university may be
modeled by the quadratic regression equation y = 6x2 - 30% +6, where x
represents the year. based on the regression equation, which year is the best
prediction for when 906 people will attend graduate school?
o
o
a. year 11
b. year 15
c. year 6
d. year 9
o

  B.  Year 15

Step-by-step explanation:

Along with helping you do quadratic regression, a graphing calculator can help you evaluate quadratic functions. This one has a value of 906 when x=15.

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By hand, you would set y=906 and solve for x:

  906 = 6x^2 -30x +6

  151 = x^2 -5x +1

  156.25 = x^2 -5x +6.25 . . . . . . add 5.25 to complete the square

  12.5^2 = (x -2.5)^2 . . . . . . . . . . write as squares if you like

  12.5 = x -2.5 . . . . . . take the positive square root

  15 = x . . . . . add 2.5

Year 15 is the year 906 people are predicted to attend graduate school.

well the 1 and -1 are always after the 0 and the 0 is inthe middle. s thats what i would guess. but i dont know what a slope of 2 is sorry

step-by-step explanation:

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.