Advanced Math/quadrants

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Expert: Sherman D. - 6/13/2004


Question
In which quadrant(s) are points that satisfy

x dot y < 0?

Answer
if by this you mean

x • y < 0
or
xy < 0

if you do it like this

xy < 0
becomes
y < 0/x
it can also be
x < 0/y

do that kind of graph and you get

y < 0/x
(±x,-y)

which gives you Quadrants III and IV

if you use

x < 0/y
(-x,±y)

which gives you Quadrants II and III

So the answer SHOULD be III, however according to www.quickmath.com the answer is suppose to be II and IV, i guess it because this is an "or" problem instead of an "and" problem.

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Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

Experience

Mathematics, Recipes, History, and Games.

Education/Credentials
High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

Awards and Honors
Principle's list and A and B honor roll in high school only.

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