beachemrriane beachemrriane
  • 13-02-2018
  • Mathematics
contestada

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

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JasonLai
JasonLai JasonLai
  • 13-02-2018
Here's the formula:
(y2-y1)/(x2-x1)
so then:
(p-3)/(21-9)
so:
p-3/(12)
so then p = 7
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