The graph below represents which of the following functions?

This is a more difficult one to explain. Let's start with the line to the right.  It has a slope (m) of = -1 and a y-intercept of +3 (continue the line to see where it crosses the y-axis). So, the equation of that line is: y = -x + 3 when x ≥ 2. This can also be written as y = 3 - x when x ≥ 2.  The only option that has that equation is A.

A

answer: there are 453.592 grams in a pound.