Since the line is raising the slope is positive.
\Next, find the slope.
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Substitute 17 for y2 ,7 for y1 , 1 for x2 , and –3 for x1 in slope formula.
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(Product of two same signs is positive)
(Subtract:
)
(Add:
)
(Divide:
)
Slope is positive and slope is 2.5.