The answer that does not represent a function is A.
ANSWER
EXPLANATION
If g(x) is the transformation of f(x) as follows,
Then g(x) is a horizontal compression (if a > 1) or stretch (if a < 1) of f(x). The rule to map each point is,
In this case, this is a stretch so the point (-2, 2) maps to the point (-4, 2) and the origin is the same. Join these two points with a line and we get the graph of f(¹/₂x).
163 cost $144.99
211 cost ????
211 * 144.99 / 163
= 30,592.89/163
=187.68
Answer is c) $187.68
The answer is most likely G (NOT 100% SURE)