What is a function? Why is domain (input) and range (output) important when defining a function?

Which unit of measure would be the most appropriate to measure the capacity of a bottle of nail polish? a. fluid ounces b. cups c. pints d. quarts e. gallons

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.

Find the value of x in each case. show your work with proper statements and notation. f ∈ dg