Answer:
-363
Step-by-step explanation:
42-27*5
42-405
Answer: -363
Answer:

Step-by-step explanation:
Given



Required
PQ
Since Q is between the given points, then:

This gives:

Collect like terms


Next, solve for x
We have:


This gives:

Collect like terms


Divide by 2

So:



The midpoint is C, (-0.5,0.5)
Find the middle between the x and y coordinates and that is the midpoint
You can not solve for a as all of the numbers are unknown