What is an equation of the line that passes through the point (1, -3) and is perpendicular to the line x + 3y
= 21?

  3x -y = 6

Step-by-step explanation:

When the equation of a line is given in the form ax+by=c, the perpendicular line through point (h, k) will be ...

  bx -ay = bh -ak

Here, we have a=1, b=3, h=1, k=-3, so the line is ...

  3x -y = 3(1) -(1(-3))

  3x -y = 6

Step-by-step explanation:

Arrange values into slope intercept form ; y=mx+b

Arrange values into slope - intercept form and solve for b

Substitute new values into slope intercept form

Arrange in standard form

i can not answer the question due to the fact that you spelled "carton" as "cartoon", a cartoon is something you watch on tv, a carton is a box that holds things. and also you've been waiting for this question for a while so why don't you get off your lazy a** and try to figure it out for yourself for once!

step-by-step explanation:

===============================================================^

look above, and leave your comments down below, and don't for get a five stars and a and brainliest xd

sorry for the stars in the middle of words its because it wouldn't let me submit. xd