Solve the problem.
-The long jump record, in feet, at a particular school can be modeled by $f ( x ) = 19 + 2.5 \ln ( x + 1 )$ where x is the number of years since records began to be kept at the school. What is the record for the long jump 25 years after
Record started being kept? Round your answer to the nearest tenth.
A) 27.0 feet
B) 26.9 feet
C) 21.5 feet
D) 27.1 feet

Question

Quizplus · Accepted Answer

To find the long jump record 25 years after records began to be kept, substitute $x = 25$ into the given function: $f(25) = 19 + 2.5 \ln(25 + 1)$. Simplifying, $f(25) = 19 + 2.5 \ln(26)$. Using a calculator, this evaluates to approximately 27.1 feet, rounding to the nearest tenth.

Solve the Problem f(x)=19+2.5ln⁡(x+1)f ( x ) = 19 + 2.5 \ln ( x + 1 )f(x)=19+2.5ln(x+1)

Solve the Problem $f ( x ) = 19 + 2.5 \ln ( x + 1 )$