X 8.4.AP-4 Question Help
The table below shows the average temperature in a particular city for the months of March through October. Let x= 3 represent March, x = 4 represent April, and so
on. Plot the points and then find a regression equation that best models the data.
March April May June July August September October
74 70 68 66 64 65 70 74
Choose the correct plot below. All graphs are [0,12,1] by [60,80,2).
OA.
B.
OC.
Q
a
Q
a
The regression equation is y=0
(Type an expression using x as the variable. Use integers or decimals for any numbers in the expression Round to the nearest thousandth as needed.)

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

3/6 chance

step-by-step explanation:

half of the nubers are odd numbers (1,3,5) which in that case if you would be told to simplify it would be 1/2

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0