4000000+500000+8000+200+20+7
<h3>
It is a function</h3>
Why? Because each input maps to <u>exactly one</u> output. The input oval represents the domain (set of all possible inputs). The output oval is the range, which is the set of all possible outputs. If we had something like the input 0 mapping to the outputs 2 and 4 at the same time, then we wouldn't have a function.
Answer:
Step-by-step explanation:
You can use the work they gave you and continue from there:
First, simplify the numerator:
Finally, simplify the denominator:
