Hi guys. i'm currently doing my homework but i'm stuck on this question and i need help ASAP

" find K given that (-3,k) is 7 units away from (2,4)"
how do i solve this question. and which formula do i use
thanks guys so much.
xxxx

The distance between two points on a coordinate grid can be found from Pythagorus:


d = \sqrt {(x_1 -x_2)^2 + (y_1 - y_2)^2 }


Here d = 7\text {, }(x_1,y_1) = (2,4)\text{, and }(x_2,y_2) = (-3, k). Use these values in the above equation and solve for \small y_2.

thank you ebaines :)!!!!

Your are welcome! Don't forget that there are two possible answers.