a) Graph by first finding the vertex, zero(s), y intercept algebraically for f(x)=x²-5x-6 b) A diver dives into the sea from a cliff. His height 'h' in meters 't' seconds after leaving the cliff is given by: h= -5t²-30t +35. i) How high is the cliff? ii) How long is it until he reaches the water? Show Work.
