D. If you wanted a really steep hill for your roller coaster, would you use the graph of y = –2x2 + 6 or y = (-1/10)x2 + 6? Why? What part of the expression affected the steepness?
y=(-1/10)x^2+6 is the better graph because you don’t want the roller coaster enthusiasts to go down a super steep coaster which will happen if we use the graph y=-2x^2+6 .
E. Using the same reasoning from part D, create an equation that will be steeper than both equations, and explain your reasoning.

Can anybody help me ?

Question

D.	If you wanted a really steep hill for your roller coaster, would you use the graph of y = –2x2 + 6 or y = (-1/10)x2 + 6? Why? What part of the expression affected the steepness?
y=(-1/10)x^2+6 is the better graph because you don’t want the roller coaster enthusiasts to go down a super steep coaster which will happen if we use the graph y=-2x^2+6 .  
E.	Using the same reasoning from part D, create an equation that will be steeper than both equations, and explain your reasoning.


Can anybody help me ?