Easy math I don't remember....?

Question

Hey,
My friend was talking about plotting points on a graph and mentioned quadrants...yeah but i dont remember- if you plot a point directly on the x or y axis doesn't that mean that it's not in a quadrant? Same thing for zero as well no?
I know I'm retarded ( but honestly I just don't remember) and to think that I going into honors PreCalc is a scary thought.

Answer 1

Hi,

You are correct that a point on either axis or at the origin is NOT included in any quadrant.

Quadrants are numbered by Roman numerals, starting with Quadrant I in the upper right corner, Quadrant II is in the upper left quadrant, Quadrant III is in the lower left corner and Quadrant IV is in the lower right corner. (One of your other answers had quadrants II and IV reversed.)

Examples of points in each quadrant:
Quadrant I - (3,7), (8,100) ==>both positive numbers
Quadrant II - (-3,5), (-17, 4) ==>negative & positive number
Quadrant III - (-5,-6), (-8,-12) ==>2 negative numbers
Quadrant IV - (4,-6), (108,-2) ==>positive, then negative

I hope that helps!! :-)

(And good luck in pre-calc! Work hard from the beginning, ask when you have questions, study hard - you can do it)

Answer 2

There are four quadrants and the origin (0,0) is shared by all of them. (+5, +5) is in 1st quadrant, (+5, -5) is in second, (-5, -5) is in third and (-5, +5) is in fourth.

Answer 3

if you plant a dot on either the x or y axes, it is not in one quadrant. you would say that it lies on either the x or y axis at whatever number it is plotted on.