Answer:
7
Step-by-step explanation:
the answer is 7 because -4 in the first pair and 3 from the second ordered pair is 7.The other side is 4 because 2 and -2 are 4 places away from each other
hope it helps :)
Your answer is 21 for this one.
The fourth vertex would be at point (-9,1).
The slope from (5,-4) to (3,4) is -8/2 or -4.
So I did that with (-7,-7) to the fourth vertex to get the answer.
No; we have 
. Substituting these into the DE gives
which reduces to 
, true only for 
.
