The table shows numbers of books read by students in an English class over a summer and the students' grades for the following semester. Books 0 0 0 0 1 1 1 2 2 3 5 8 13 15 19
Grade 66 70 72 75 73 76 72 75 77 85 89 91 97 90 99
Use your calculator to find an equation for the line of best fit. Calculate and interpret the correlation coefficient. Round your answers to three decimal places, if needed.

The line of best fit is y ≈
x +
;
The correlation coefficient is
which shows a
(select)
correlation.

Use your equation to predict the grade of a student who read 7 books. Round your answer to the nearest whole number, if needed.

The predicted grade is
.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )

70 years.

step-by-step explanation:

6: 07 is your answer

step-by-step explanation: