Answer:
In its simplest form the domain is all the values that go into a function, and the range is all the values that come out.
Step-by-step explanation:
Considering there is not much information my best guess would be 175-28x
The derivative of
in the direction of a vector
is

With
, we get

and
,

Then

A reflection over the Y-axis would be the flipped point or set of points across the y axis while still retaining the same distance from the y-axis.
:)