now, plug in the x-coordinates of the points given and see if you get back the y-coordinates given, if you don't, then that point is not on the line.
example, try (c): plug in x = 0, we get:
since 2 was the y-coordinate given, this point is on the line. thus, this is not the point we are looking for
use the midpoint formula to find R.
2. P is the point ( 3 , 5 ). Q is the point ( -1 , 9 ). R is the midpoint of PQ.
Which of the following does R lie on?
a. y = x + 6
b. y = x + 8
c. y = x - 6
d. y = x - 8
Thanks in advanced to anyone who can help.
recall: the midpoint between two points and is given by:
once you have found R, do a similar procedure as in the previous problem