Find the coordinates of the point 7/10 of the way from A(-4,-5) to B(12,7)

Answer 1

The difference, Δx , between the x coordinate of A and that of B is Δx = 12 -(-4) = 16

The difference, Δy, between the y coordinate of A and that of B is Δy = 7 -(-5) = 12

Thus the x coordinate of the desired point is x = -4 + (7/10) Δx = 36/5

And the y coordinate of the desired point is y = -5 + (7/10) Δy = 17/5