standard_description: Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output. (Function notation is not required in Grade 8.)
problem_activity: Find all of the roots of the following quartic equation:
$${h(x)=x^4-2x^3-9x^2-18x}$$


aligns: no