jayylukee: y = 0.5738x + 79.214
R² = 0.9987
substitute in 170 as the y-variable and solve for x
Okay so you want to solve the equation y = 0.5738x +79.214 where y = 170?
Then if we replace y with 170 we have
170 = 0.5738x + 79.214
first lets substract 79.214 from both sides, then we have
170+79.214 = 0.5738x
secondly, we divide both sides by 0.5738. So we have;
(170+79.214)/0.5738 = x
Flip the sides and we have
x = (170+79.214)/0.5738 = 434.32 (approximately)
As you can see, I did not need the information that R
2 = 0.9987
perhaps you also wanted to know what R is.
We can calculate that by taking the square root of both sides which gives
R = sqrt(0.9987) = 0.9993 (approximately)
Reinout
+2353 
