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1 vote
A line containing the points (9,3) and (21,p) has a slope of 1/3. what is the value of p?

User Tim Jarosz
by
5.8k points

1 Answer

1 vote
Here's the formula:
(y2-y1)/(x2-x1)
so then:
(p-3)/(21-9)
so:
p-3/(12)
so then p = 7
User Marco Guerri
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5.8k points