Question

Write the equation of the line that passes through (–1, 5) with a slope of 2 in standard form.

–2x – y = –7

2x – y = –7

2x – y = 11

–2x + y = –11

Answer 1

Use point-slope form:

y - y1 = m(x - x1)
y - 5 = 2(x + 1)
y - 5 = 2x + 2

Then, rearrange the terms into standard form Ax + By = C

2x - y = -7