Question

Write a point-slope equation for the line that has slope 3 and passes through the point (5, 21). Do not use parenthesis on the y-side.

Answer 1

y - y1 = m(x - x1)

slope(m) = 3
(5,21)....x1 = 5 and y1 = 21
now we sub

y - 21 = 3(x - 5) <===