Given a function with $f\left(3\right) = 2$ and $f^ \prime \left(3\right) = −4$:

1. Find the equation of the tangent line to the curve at the point $\left(3, 2\right)$.

   Hint (a):

   The given information consists of the point $\left(3, 2\right)$ and $m = −4$.

2. Approximate $f\left(3.2\right)$.

   Hint (b):

   Using your equation from part (a), let $x = 3.2$ and find $y$.