If ab=4 ad=8 and bc=5, what the length of de?

Which inequality has a dashed boundary line when graphed ?

Construct the graph that models the given situation

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25