A slope is also known as the gradient of a line. The average rate of change between x = -2 and x = 0 is -2.
What is the Slope?
A slope also known as the gradient of a line is a number that helps to know both the direction and the steepness of the line. The slope of the line can also be defined as the rate of change.
The average rate of change will be the slope of the line representing the points. The slope is needed to be found between x=-2 and x=0, now the coordinates lying between x=-2 and x=0 are (-2,10) and (0,6).
The slope of the line will be,
m = (6-10)/(0-(-2)) = -4/2 = -2
Hence, the average rate of change between x = -2 and x = 0 is -2.
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