The slope can be said to be the cahnge in the values of y divide by the change in the values of x.
To find the slope, apply the slope formula below:
From the given graph, take the points on the line:
(x1, y1) ==> (10, 80)
(x2, y2) ==> (30, 90)
Input values into the formula and solve for m.
Thus, we have:
Therefore, the slope is ½
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