find the coordinates of the point 3/10 of the way from a to B

Question

A=(-3,-6)

B=(12,7)

Answer 1

from A to B for the x coordinates is 15 = 12 - - 3

3/10 of 15 is (3/10)(15) = 9/2. Add 9/2 to -3 gives 3/2 = 1.5

from A to B for y coordinates is 7--6 = 13

3/10 of 13 = 39/10 = 3.9 Add 3.9 to -6 gives -2.1

the point 3/10 of the way from A to B is (1.5, -2.1)