Problema Solution

palm tree is 9ft tall ,the tree grows two inches each year,write and solve an equation to find the number of years it would take for the tree to be 21 ft tall

Answer provided by our tutors

the equation that describes the growth of the tree is


f(x) = 9 + 2x,


where x are the years and f(x) is the height of the tree


fnd the number of years it would take for the tree to be 21 ft tall means to find t such that f(t) = 21 ft or


9 + 2t = 21


by solving we find


t = 6 years


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after 6 years the alm tree will be 21 ft tall.