PLZ HELP WITH PART A ONLY PLZ HELP

A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days:

f(n) = 8(1.05)n

Part A: When the scientist concluded his study, the height of the plant was approximately 11.26 cm. What is a reasonable domain to plot the growth function?

Question

PLZ HELP WITH PART A ONLY PLZ HELP

A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days:

f(n) = 8(1.05)n

Part A: When the scientist concluded his study, the height of the plant was approximately 11.26 cm. What is a reasonable domain to plot the growth function?

xapproachesinfinity · Answer

Domain logically start from zero (in zero day)
where the plant has shown it self yet from ground
the maximum height as found by the scientist is 11.29
f(n)=11.29 for some day n
we need to 8(1.05)n=11.29
solve for n=11.29/(1.05)8

xapproachesinfinity · Answer

so domain [0 , 11.29/8(1.05)]
calculate that value

anonymous · Answer

Is it 
1.344?