Finding A1/B1 for perpendicular lines in terms of A2 and B2

[eXmag]

Homework Statement

If the graphs of A1x + B1y = C1 and A2x + B2y = C2 are perpendicular, express the following in terms of A2 and B2.

A1/B1= ?

Homework Equations

Negative reciprocal

The Attempt at a Solution

I thought that by expressing A2 and B2 with A1/B1, it would just be the negative reciprocal if its perpendicular so it would be -B2/A2 which is incorrect.

 

[Dick]

Homework Statement

If the graphs of A1x + B1y = C1 and A2x + B2y = C2 are perpendicular, express the following in terms of A2 and B2.

A1/B1= ?

Homework Equations

Negative reciprocal

The Attempt at a Solution

I thought that by expressing A2 and B2 with A1/B1, it would just be the negative reciprocal if its perpendicular so it would be -B2/A2 which is incorrect.

It shouldn't be marked as incorrect. It looks correct to me.

 

[eXmag]

This is how webassign screws you over!

 

[eXmag]

Thanks for the response! I knew it was correct