The graph shows the number of sprays an automatic air freshener dispenses, y, in x minutes:
Which expression can be used to calculate the rate per minute at which the air freshener dispenses sprays? It would mean a lot if someone could explain how to do this. I think it may be 30/16 but i'm not too sure

Question

The graph shows the number of sprays an automatic air freshener dispenses, y, in x minutes:
Which expression can be used to calculate the rate per minute at which the air freshener dispenses sprays? It would mean a lot if someone could explain how to do this. I think it may be 30/16 but i'm not too sure

anonymous · Answer

attachment

anonymous · Answer

The phrase "Number of sprays per minute" can be translated to a more understandable $$\large \sf \frac{Number~of~sprays}{minute}$$ So choose a point and plug in the values into this fraction.

anonymous · Answer

How do you do that? I just started learning this and its all confusing me. @LegendarySadist sorry

anonymous · Answer

How do you do what?

anonymous · Answer

Plug in the values @LegendarySadist

anonymous · Answer

If you are at 30 minutes you would put that in for the denominator. At that 30 minutes, you would locate the number of sprays that have happened where x=30, and put that into the numerator.

anonymous · Answer

oh, okay. So the answer is 4/30? Thanks for explaining all of this. I'm very horrible at math.

anonymous · Answer

Yes, it would be 4/30, although you should simplify it