Question

Write the equation of the line that passes through (–1, 5) and has a slope of 3 in point-slope form.

Answer 1

using the formula

$y - y1 = m(x - x1)$

where m is the slope or gradient

from the question, x1 = -1 and y1 =5

and gradient/slope m = 3

substituting them in the formula

$y - 5 = 3(x - ( - 1))$

$y - 5 = 3(x + 1)$

$y - 5 = 3 x + 3$