What does reconcile the desire to act independently with the the need for security mean

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?

The vertical height of a soccer ball can be represented by the following function, where h(x) represents the height, in feet, x seconds after the soccer ball is kicked. rewrite the function in the form that reveals the times at which the soccer ball is on the ground.

Which best defines a literary stereotype and its purpose in literary? a- a literary stereotype is a term used interchangeably with prejudice.b- a literary stereotypes creates conflict and contrast how a character may seem with who a character really is. c- a literary stereotypes has no purpose in literary in literary expect to reveal prejudice and express the views of an antagonist. d- a literary stereotype is a way for the writer to indicate whether a character is good or evil, a protagonist or an antagonist.