Solve the problem.
-The long jump record, in feet, at a particular school can be modeled by f(x)= 19.2 + 2.2 ln (x + 1)where x is the number of years since records began to be kept at the school. What is the record for the long jump
20 years after record started being kept? Round your answer to the nearest tenth.
A)25.9 feet
B)25.8 feet
C)25.7 feet
D)21.4 feet

Question

Quizplus · Accepted Answer

To find the long jump record 20 years after records began, substitute x = 20 into the given function: f(x) = 19.2 + 2.2 ln(x + 1). This gives f(20) = 19.2 + 2.2 ln(21). Calculating this yields approximately 25.9 feet when rounded to the nearest tenth.

Solve the Problem. -The Long Jump Record, in Feet, at a Particular School