Question

If A = (10,4) and B = (2, 19), what is the length of AB?

Answer 1

Answer:

Opt A. 17

Step-by-step explanation:

This is the distance between two points, which can be obtained with following equation.

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

Where (x2,y2)=(10,4) and (x1,y1)=(2,19)

Therefore, if we develop a little with the following:

(10-2)^2=(8)^2=64

(4-19)^2=(-15)^2=225

Evaluating that in the equation, we have: sqrt(64+125)= sqrt(289)=17

That is the distance between those points.