Reply
Fri 22 Sep, 2006 08:22 pm
I am having trouble solving for y2.
Solve for y2 in the distance formula given below.
d = sqrt{(x2-x1)^2 + (y2-y1)^2}
My answer:
y2 = d^2 - y1 but I am wrong.
Help!
shark
It's hard with a keyboard, but:
d = SQRT[(x2 - x1)^2 + (y2 - y1)^2]
d^2 = (x2 - x1)^2 + (y2 - y1)^2
(y2 - y1)^2 = d^2 - (x2 - x1)^2
y2 - y1 = +/- SQRT[d^2 - (x2 - x1)^2]
y2 = y1 +/- SQRT[d^2 - (x2 - x1)^2]
show your work, shark, and we can show you where you messed up so you won't make the same mistake again.
Stumble It!
Tweet This
Bookmark on Delicious
Share on Facebook
Share on MySpace