| T O P I C R E V I E W |
| lynna |
Posted - 10/16/2007 : 18:56:55
Please help me fine and equation for the left half of the circle given by (x+2) +y=9
I foiled the x+2 and solved for x. the answer I got was x= - y-4x-5 but I didn't know if it was ok to still have the x in the answer. |
| 3 L A T E S T R E P L I E S (Newest First) |
| skeeter |
Posted - 10/18/2007 : 08:13:36
quote:
Originally posted by David
Skeeter, isn't that just a translation of the entire circle to the left?
If she wants the left half, should there not be boundaries defined?
{(x-2) + y^=9; -5<=x<=-2}
plot some points using my last equation and see the result for yourself. |
| sahsjing |
Posted - 10/17/2007 : 16:48:27
This is the same as you switch x and y, and then find the lower half of the circle. |
| skeeter |
Posted - 10/16/2007 : 19:28:50
(x + 2) + y = 9
(x + 2) = 9 - y
x + 2 = -(9 - y)
x = -[2 + (9 - y)]
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