Question

the value of a if the distance between the points A (- 3, - 14) and b (1, - 5) is 9 units​

Answer 1

Answer:

Step-by-step explanation: Pls show where is a?????

Answer 2

The value of a is -3

Distance between two points (x1,y1) ( x2,y2) is :

=√(x2-x1)²+(y2-y1)²

So, x1= -2

y1= -14

x2=a

y2=-5

Distance between two points is

=√[(a+3)²+(-5+14)²] =9

squaring on both sides.

(a+3)²+81=81

(a+3)²=0

(a+3)(a+3)=0

a+3=0

a= -3