Sol : Here a=4 n=6 d=? Length of tree after 6 years would be a6 = a+(6-1)d => a6 = a+5d and after 4 years would be a4 = a+3d given a6 = 1/5 (a4)+a4 => a+5d = [1/5(a+3d)]+a+3d =>5a+25d = 6(a+3d) => 7d = a => d=4/7 Just a slight change in this. Initial height is 4 ft. So after one yr, is is 4+d after...

Re: AP question?

I am very inconsistent with solving AP questions. Please advise the best way to approach the following problem: Q: When a certain tree was first planted, it was 4ft tall and the height of the tree increased a constant amount each year for the next 6 years. At the end of the 6th year, the tree was 1...

functions

Which of the following functions f is f(x)=f(1-x) for all x?

a) f(x)=1-x
b) f(x)=1-x^2
c) f(x)= x^2-(1-x)^2
d) f(x)= x^2(1-x)^2
e) f(x)= x/(1-x)

I wasn't even sure where or how to begin this problem. Any advice?

Thank you.