Tuesday

December 6, 2016
Posted by **Sam** on Sunday, June 13, 2010 at 8:05am.

- Math/209 -
**Reiny**, Sunday, June 13, 2010 at 9:48amAny equation in x and y merely gives you a description of the relationship between the x and y coordinates of the points in a relation.

e.g.

x=y = 6 means that as long as the x and the y of a given point add up to 6, that point belongs.

So in your case it says that y = -8 , with no mention of x.

That means that we don't put any restriction on x and x can be anything we want it to be

as long as our y is -8, anything goes

so some points:,

(1,-8), (5,-8), (-3,-8), (3.56,-8), (√2,-8), (0,-8), ... - typo - Math/209 -
**Reiny**, Sunday, June 13, 2010 at 9:50am4th line should have been

x+y = 6 means that as long as the x and the y of a given point add up to 6, that point belongs.

but you probably guessed that anyway. - Math/209 -
**Sam**, Sunday, June 13, 2010 at 11:05amCan you please explain to me how you find the points, such as (1,-8) and (-3,-8)are mulitilying, adding, what exactly do I have to do to get this?

- Math/209 -
**Reiny**, Sunday, June 13, 2010 at 12:26pmAs I stated, since there is no x in your equation, x can be any value you want it to be, as long as the y value is -8.

so I just made up any x I could think of.

There is no mathematical operation involved at all, since all it said that y = -8 or

"the y value has to be -8"