Question

Look at the 2 pics please.

Answer 1

Can you write out the equation of the line RS?

Answer 2

If you can, then, the next step is write the equation of the line perpendicular to the line RS and pass through the point T,
If you can't, fell free to ask

Answer 3

How?

Answer 4

I still don't know how to find the equation.

Answer 5

can you find the slope of RS

Answer 6

Given Coordinates: $$ \color{blue}{(x_{1},\color{red}{y_{1}})}\;and\;\color{gold}{(x_{2},\color{green}{y_{2}})}$$
$$m(slope)= \frac{( \color{green}{y _{2}}-\color{red}{y_{1}})}{(\color{gold}{x _{2}}-\color{blue}{x_{1}}) }$$

R(0,1)
S(-4,7)