Question

if the distance the points (2,-2) and (-1,k) is 5, the value of k is?

Answer 1

Answer: K=2

Step-by-step explanation: By applying distance formula,

-/(X1-X2)^2 + (Y1-Y2)^2

-/(2-(-1))^2 + (-2-K)^2

-/(3)^2 + (K+2)^2 = 5

9 + (K+2)^2 = 25

(K+2)^2 = 16

K+2 = 4

K=4-2 = 2

Answer 2

$\huge{Answer}$

k = 2