Write an equation of the line in point-slope form, that passes through the two given points
Points (-2,15), (9,-18)
Answers are
Y-2=-3(x-15)
Y-2=-1/3(x+15)
Y-15=-3(x+2)
Y-15=-1/3(x+2)
Thanks

Question

Write an equation of the line in point-slope form, that passes through the two given points 
Points (-2,15), (9,-18)
Answers are
Y-2=-3(x-15)
Y-2=-1/3(x+15)
Y-15=-3(x+2)
Y-15=-1/3(x+2) 
Thanks

vshiroky · Answer

y2-y1/x2-x1 will give you your slope.
then do y-y1=slope(x-x1)

a1234 · Answer

Slope formula- (y2 - y1)/(x2 - x1)

(-18 - 15)/(9 + 2)

-33/11 = -3

Point-slope form: y - y1 = m(x - x1)

y - 15 = -3(x + 2)

y - 15 = -3x - 6

y = -3x + 9

a1234 · Answer

C.