Question

How would you write 0.3y + 1.2 = –0.4x in standard form? How would you write 0.3y + 1.2 = –0.4x in standard form? @Mathematics

Answer 1

The standard form: Ax + By + C = 0

0.3y + 1.2 = -0.4x    |add 0.4x to both sides

0.4x + 0.3y + 1.2 = 0    |multiply both sides by 10

4x + 3y + 12 = 0