Plans for a bridge are drawn on a coordinate grid. One girder of the bridge lies on the line y = –9x – 9. A perpendicular brace passes through the point (–1, 7). Write an equation of the line that contains the brace.

Question

anonymous · Answer

Do they give u an example??

anonymous · Answer

y – 1 = –1/9(x + 7)
x – 7 = –9(y + 1)
y – 7 = 1/9( x + 1)
y – 7 = –9(x + 1)
one of those is the answer

anonymous · Answer

I think its C...but check with someone else also. I think I wrong