Problema Solution
A plant 3 centimeters tall is placed by a window. If it grows 4 centimeters a day, how many days will it take to be 51 centimeters tall?
Answer provided by our tutors
if x is the number of days we can write the following function f(x) for the height
f(x) = 3 + 4x
after how many days the plant will be 51 cm tall this means we need to find x such that f(x) = 51
f(x) = 51
3 + 4x = 51
by solving we find
x = 12 days
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after 12 days the plant will be 51 cm tall.