# When asked to write a point slope equation for a line passing through the points (-3,-5) and (2,4) a student wrote y-4=-9/5(x-2). how can he fix thi to write the correct equation?

QUESTION POSTED AT 01/06/2020 - 02:55 PM

QUESTION POSTED AT 01/06/2020 - 02:55 PM

(-3,-5)(2,4)

slope(m) = (4 - (-5) / (2 - (-3) = (4 + 5) / (2 + 3) = 9/5

y - y1 = m(x - x1)

slope(m) = 9/5

(2,4)...x1 = 2 and y1 = 4

sub

y - 4 = 9/5(x - 1)....this is the correct answer

the student figured the slope wrong....it is 9/5...not -9/5

slope(m) = (4 - (-5) / (2 - (-3) = (4 + 5) / (2 + 3) = 9/5

y - y1 = m(x - x1)

slope(m) = 9/5

(2,4)...x1 = 2 and y1 = 4

sub

y - 4 = 9/5(x - 1)....this is the correct answer

the student figured the slope wrong....it is 9/5...not -9/5

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