Question

Passing through - 9,-1 and perpendicular to 7x+9y=46

Answer 1

solve the equation for y first

Answer 2

I got y=7/9x-72/9

Answer 3

ok so the slope is
\[m=\frac{7}{9}\]
If two line segments are perpendicular, their slopes are negative reciprocals
so for the new line
\[m=-\frac{9}{7}\]

Answer 4

you also have the points
\[x_{1}=-9,y_{1}=-1\]
use the information you have in this equation
\[y=m(x-x_{1})+y_{1}\]

Answer 5

\[y=-\frac{9}{7}(x-(-9))+(-1)\]
I'm sure you can handle it from here =)