Line $m$ has intercepts $\left(-7,0\right)$ and $\left(0,-2\right)$.  

1. Find the equation of line $m$.

   Hint (a):

   You are given the $y$-intercept. Calculate the slope and write the equation.

2. Is the point $\left(49,-16\right)$ also on line $m$? How do you know?

   Hint (b):

   Substitute the given point into the equation you wrote in part (a). Do you get a true statement?

3. Write the equation of a line that is perpendicular to line $m$ and passes through the point $\left(6,-1\right)$.

   Hint (c):

   The slope of the perpendicular line will be the opposite reciprocal of line $m$.