They are, when appropriate.
-x is a negative unknown or a negative variable.
The top right one... it is the first because it is where both the x-value and y-values are positive. The second quadrant is the top left. The x-values are negative and the y-values are postive. The third quadrant is the bottom left. The x-values are negative and the y-values are negative. The fourth quadrant is the bottom right. The x-values are positive and the y-values are negative.
Quadrants 2 and 3 have negative X values.
... negative.... negative.... negative.... negative.
If the points have both positive y-values and x-values it is quadrant 1 If the points have a negative x-value and a positive y-value it is quadrant 2 If the points have both negative y-values and x-values it is quadrant 3 If the points have a positive x-values and a negative y-value it is quadrant 4
They are negative
Value of X can be chosen randomly when making a table of values representing a real world situation.
-3 x -3
They have negative values
The positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. It is where the y-values are negative (not zero).
Pick at least six points (negative x values and some positive x values). You can also find its vertex (x=-b divided by 2a).
Negative abscissa (x), positive ordinate (y).