Question

Find the equation of a line that passes through the point (-4,1) and has a gradient of 2.

Leave your answer in the form
y=mx+c

Answer 1

y = 2x + 9.

Explanation:

Using the point-slope form:

y - y1 = m(x - x1) where m = the slope and (x1, y1) is a point on the line.

So here we have:

y - 1 = 2(x - (-4))

y - 1 = 2(x + 4)

y - 1 = 2x + 8

y = 2x + 9.