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Mathematics 7 Online
OpenStudy (anonymous):

Write an equation in point slope form of the line that passes through (2,-2) (5,7)

OpenStudy (kc_kennylau):

Find the slope first :) (slope=\(\tfrac{y_2-y_1}{x_2-x_1}\))

OpenStudy (anonymous):

the slope would be 3?

OpenStudy (kc_kennylau):

BINGO :D

OpenStudy (kc_kennylau):

now substitute one of the points and the slope into the formula \(y=mx+c\) and work out the \(c\) :D

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