The point M (x, 4), is the midpoint of the line joining straight line Q (-2, -3) and R (14, y). The value of x and y are
In diagram below, PQR is a right-angled triangle. The sides QR and PQ are parallel to the y-axis and the x-axis respectively. The length of QR = 6 units.
Given that M is the midpoint of PR, then the coordinates of M are
x-coordinate of R = 3
y-coordinate of R = 1 + 6 = 7
R = (3, 7)
Given points P (–2, 8) and Q (10, 8), find the length of PQ.