Question

The distance between (-7, a) and
(5, 1) is 13 units.
Find two possible values for a.

Answer 1

1

Explanation:

you will be required to find a magnitude of the two points that is (5,1) -(-7,a) =(12,1-a)

then find square root using the formula √x^2+y^2

thus (√12^2+a^2)=13 thus 12+a= 13 hence a=13-12

a=1