I looked it up for you and Your answer is 70
set y = kx+b
for (4,-2): -2=4k+b (function 1)
for (-1,8): 8=-k+b (function 2)
Use function 2 subtract function 1:
10=-5k
k=-2
SO the slope is -2.
The variable used to predict the value of another is Independent. Is this multichoice?
Nathan read 5/6 of the book in total, 4/6 in the second week and 1/6 in the first week.