Question

Que The Distance between the point (5-4) and
(o,a) is 13.
Find the value of a​

Answer 1

Answer:

Why have you written (o,a) instead of (0,a) and (5-4) instead of (5,4)?

Explanation:

Distance formula

=

$\sqrt{(5 - 0)^2 + (4- a)^2}$ =13

25+(16+a²-8a) =169

41+a²-8a=169

a²-8a=169-41

a²-8a=128

a²-8a-128=0

a²-16a+8a-128=0

a(a-16)+8(a-16)=0

(a+8)(a-16)a=0

a =16 or -8