To find out of a graph is linear you have to use the vertical line test.
The first and the third option are correct. if you fail to do the second and last they will take away your house lol
First : x=-5-y and then put x in the phrase above
Answer:
(1.5, -13.5)
Step-by-step explanation:
Midpoint Formula: 
Simply plug in our coordinates into the formula:
x = (17 - 14)/2
x = 3/2
y = (-11 - 16)/2
y = -27/2