
You reflect a function with respect to the
axis by changing its sign.
In fact, if you consider the two alternatives
and 
you can see that you're choosing opposite outputs for the same inputs.
In other words, one graph will be made of points like
, the other of points like 
And the transformation

is exactly a reflection with respect to the
axis.
It diverges; it does not have a sum. the sum of a geometric series is given by a /(1-r) where a is the first term and the r is the ratio between the terms. r=3 in the series you have given . The absolute value of r must be less then 1 for a geometric series to converge.
Answer: The answer is number 4
Step-by-step explanation:
Answer:
1.20
Step-by-step explanation:
you divide the orginal cost by 3