1/x^-7
It would look more like 1
------
-7 (as an exponent)
x
In scientific notation, it would be 2x10^3.
An easy trick to help remember when it is a multiple of 10 is that you do the numbers that aren't zero (2) times 10 and the exponent is how ever many zeros there are after the other numbers (3).
Answer:
(-∞,19)
Definition: The domain of a function is the set of input or argument values for which the function is real and defined
