Several students performed an experiment by dropping marbles of u
measured the height of the water after every five marbles. the resu
ng marbles of uniform size into a jar of water. they
roles. the results are listed in the table below.
number of
marbles
5
10
15
height of
water
(inches)
8
i 10
1 11
i 13
20
em situation and the approximate number of marbles it will take for the
which function best represents
water to reach a height of 2 feet?
f(x) = x + 3; approximately 21 marbles
f(x) = 0.3x + 6.5; approximately 58 marbles
f(x) = 0.3x + 8; approximately 53 marbles
f(x) = x + 8; approximately 16 marbles