Which idea best supports an argumentative essay against playing football in middle school? Football is a popular sport in the United States. Football is a dangerous sport. Football was invented in the Americas. Football has a larger audience than baseball.

ah, shun the horrid gulf! by scylla fly.

they are all talking about chocolate (next time you post a question with "which" post the choices too)

what's the topic we have to write about?

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.