Question

The yearly production of a 5 foot tree is 25 oranges. A 16 foot tree produces 58 oranges. Firstly, I had to list the ordered pairs, which are (5,25) and (16,58)then used slope-point equation to find the number of fruits from 18 and 20 foot trees. The last part of the question is to predict the height of an orange tree that produces 88 number of fruits. What can I do here?