What is the name and function of this structure?
Tube feet - used to circulate blood
Spines - used to protect the animal
Tube feet - used for animal movement and food capture
Madreporite - used to circulate water

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)