​​Let $A=\left(-2,5\right)$ and $B=(5,-2)$. 

1. Calculate the distance between $A$ and $B$.

   Hint (a):

   Plot the points and connect them. Then create a right triangle with segment $AB$ as the hypotenuse.
   Use the Pythagorean Theorem to calculate the length of segment $AB$.

2. Write the equation of the line passing through points $A$ and $B$.

   Hint (b):

   1. Determine the slope: rise/run.
   2. Substitute a given point and the slope into the point-slope formula.
   3. Solve for $y$ for the slope-intercept form.