Question

Standard form of (-2,0)

Answer 1

The formula you can use is

y - y1 = m(x - x1)

plug the y value you are given  into y1 and the x value you are given into x1. m is for your slope value. after you plug in the known values, solve. your final answer should be in standard form which is 

Ax + By = C

your answer should not contain any fractions and your Ax value cannot be a negative value, By and C can be negative though.

hope this helps :)