The slope of a line is determined by how the y-values change relative to the x-values. If the slope is positive, it means that as the x-values increase, the y-values also increase. This results in a line that slopes upwards from left to right.
On the other hand, if the slope is negative, it means that as the x-values increase, the y-values decrease. This results in a line that slopes downwards from left to right.
The sign of the slope is determined by the direction in which the line is slanting on a graph. A positive slope indicates an upward slant, while a negative slope indicates a downward slant.
explain why the slope is positive or negative
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