Answer:
Infinite
Step-by-step explanation:
There is infinite rational numbers between any two rational numbers.
Example:
Rational number between -2 and 2
-1.9,-1.8,-1.7,-1.6 etc.
Therefore, answer will be Infinite
For this case, we find the equation of the line, for this we look for points where the line passes:

We found the slope:

Thus, the equation of the line is:

We substitute a point to find "b":

Finally:

Now, the domain is given by all the values for which the function is defined.
It is observed that "x" can take any value, that is, it is defined for all real numbers.
Answer:
Option A
1+2i
to find the midpoint you do it just like you did with rectangular coordinates,
add and divide by 2 the real component and the imaginary components.

and
600 km=600,000 m
So 600km is bigger than 5 m