Question 30:
 

a) Write an expression (involving the variable $a$ and $h$ ) for the slope of the line segment joining $S$ and $T$ in the figure above.
      Slope = (an expression involving the variables a and h)
 
b) Evaluate your expression for $a = 1.6$ and $h = 0.01$. Round your answer to two decimal places.
      Slope = (a value rounded to two decimal places)