Question

FAN AND MEDAL

Answer 1

Think about what made the set of values in the table a function for your last problem. The input (x-value) was attached to exactly one y value. In this graph, the input is a t value. Try applying the same idea to this problem.

Answer 2

It's not D, think about two different scenarios:

A) I went 300 miles and stayed for three hours, then went home.

B) I went 300 miles and stayed for three years, then went home.

The distance travelled (input) is the same in both, but the output (time spent) can be different. You're looking for one that will have one input attached to one output every single time.

Answer 3

Again, the way to eliminate these is to think of two scenarios that would prevent it from being a function. For instance:

A) My Toyota Prius has 2 cupholders in it, and it has 4 doors.

B) My Cadillac Escalade has 17 cupholders in it, and it also has 4 doors.

Between the last two, see if you can imagine two scenarios where the input is the same and the output can be different.

Answer 4

Think about you going out to lunch with your friend, paying separately. Imagine you both get a soda, but your friend gets an entire pizza while you only order a slice. Your beverages would cost the same, but your friend would have to pay the price of a whole pizza, and you would only have to pay for a slice, so your meal total would be much less than your friend's while your beverages would cost the same.

Now think about the last option. Imagine a building that is 400 feet tall. It can only be one height in inches because one foot will ALWAYS equal 12 inches. If the building was 2,000 feet tall instead, it would still only have one unique height in inches because again, a foot will ALWAYS equal 12 inches.

Answer 5

Yeah, I'm just trying to help you understand why it's the correct answer :)

Answer 6

You're welcome!