2. big tv prices here are prices and screen sizes (in
inches, measured diagonally) for 7 different si
of one brand of led hd television. use technol-
ogy to calculate the equation of the least-squares
regression line relating y = price to x = screen size.
culate
relat-
ams).
ories
screen size price screen size price
60 1000
430
2
42
55
800
39
400
50
32
300
47

answer: -8.2562234e+13

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

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