Question

write an equation in point-slope form of the line that passes through the given points (7,2), (2,12)?

Answer 1

first find the slope

m = (12-2)/(2-7) = 10/-5 = -2

then use point-slope

y - y1 = m(x - x1)

or

y -12 = -2(x - 2)

distribute

y - 12 = -2x + 4

add 12

y = -2x + 16