Question

8. Find the distance between points A and B, if Ais (-1,-2) and B is (8,10).

Answer 1

Answer:

15 units

Step-by-step explanation:

Calculate the distance d using the distance formula

d = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$

with (x₁, y₁ ) = A(- 1, - 2) and (x₂, y₂ ) = B(8, 10)

d = $\sqrt{(8+1)^2}+(10+2)^2$

   = $\sqrt{9^2+12^2}$

    = $\sqrt{81+144}$

    = $\sqrt{225}$

    = 15