Question 1086062
Weight is x (independent variable)
Cost is y (dependent variable)
slope is (4375-3543)/(0.6-0.4)=832/0.2=$4160/carat
point slope formula y-y1=m(x-x1), where m slope and (x1,y1) point
y-4375=4160(x-0.6)
y-4375=4160x-2496
a)y=4160x+1879
b) y=4160(0.73)+1879=3036.80+1879=$4915.80
c)For every increase of 1 carat, the price increases $4160.
D.
d)5706.20=4160x+1879
3827.2=4160x
x=0.92 carats