The question is in the first post :) Its a Data Sufficiency Q, it literally reads as: F at x = x squared plus x what is F at y? f(x) = x^2 + x f(y) = ? Scenario 1: weird dollar symbol y = 3 multiplied by ( ( weird dollar symbol 10) plus 30) Scenario 2: weird dollar symbol y = weird dollar symbol mul...

PR 1024 Functions #6

Hi all, Wondering if someone can help me understand this, its the first Q in this book to stump me.. Page 164 http://books.google.ca/books?id=-9wUwATGS2kC&printsec=frontcover#v=onepage&q&f=true is the digital free look at the Q f(x) = x^2 + x f(y) = ? (1) $y = 3(($10)+30) (2) $y = $($(4)...