Amongst polynomial graphs, it is when the coefficient of the highest power of the variable (x) is negative.
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If the first number is negative, you go left. If the first number is positive, you go right.
The x value represents the line going up and down on a graph. The y axis represents the line going side to sdie of the graph. An example is (3, -2) the x value is the 3. that means you go across (the side to side line) to the third point and put your dot there. the -2 is the y value. then you go to the line pointing up and down and go down two spots from the middle where the lines meet.
Draw a x and y axis coordinate Plot -10 on the y axis. From that point go down 1 and to the right one Make a new dot there. Join the two dots Continue the line past the dots in a straight line. Put arrows on both ends of the line ta da the graph of -x -10
It is called a graph cut.Example: increments go from 0 straight to 40
They mean the graph/function is decreasing.