Question

The midpoint of AB is M(-4,0). If the coordinates of A are (-6,4), what are the
coordinates of B?

Answer 1

Answer:

B (-2,-4)

Step-by-step explanation:

Let coordinates of B be (x,y)

$( \frac{ - 6+ x}{2} . \frac{4 + y}{2} ) = ( - 4.0) \\ x = 2( - 4) + 6 \\ x = - 2 \\ \\ y = 2(0) - 4 \\ y = - 4$