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The normal convention used in the Cartesian coordinate system is that everything above the x axis is positive and everything below the x axis is negative, and everything to the right of the y axis is positive, and everything to the left of the y axis is negative (the two axes are themselves neither positive nor negative, they represent zero). Since points on a graph are identified by an ordered number pair, giving first the value of x and then the value of y, there are two numbers; you can have two positive numbers, or you can have one positive and one negative number, or you can have two negative numbers. The point that you are graphing will be located in the appropriate quadrant of the graph. Two positives are in the upper right hand quadrant, two negatives are in the lower left hand quadrant, and a positive and a negative can be either the upper left hand quadrant or the lower right hand quadrant.
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What quadrant is a point that has a negative x coordinate and a negative y coordinate is located in?
The quadrant where a point has a negative x coordinate and a negative y coordinate is located in quadrant 3.
Is the y coordinate of a point in quadrant II is negative?
in 2nd quad y coordinate is positive
What quadrant is A point having a negative abscissa and negative ordinate?
The negative ordinate represents a negative y coordinate. A negative abscissa implies a negative x coordinate. Therefore the coordinate should look like (-x,-y). These coordinates are located at third quadrant.
What must be true about the coordinates of any point that lies in the second quadrant?
The x coordinate in the second quadrant is negative while the y coordinate is positive.
What is a rotation of 90 degrees about the origin?
You could rotate it in either direction, like a steering wheel. -- If you rotate the whole plane 90 degrees to the left, then the old x-coordinate of every point becomes its new y-coordinate, and its old y-coordinate becomes its negative x-coordinate. -- If you rotate the whole plane 90 degrees to the right, then the old x-coordinate of every point becomes its new negative y-coordinate, and its old y-coordinate becomes its new x-coordinate.
