Question

Blocks sell 500 bottles of perfume per month when price is $7. A huge increase in resources cost price to rise to $9. And he only manages to see 460 of perfume.

Answer 1

(x1+x2)/2,(y1+y2)/2

That's essentially what the midpoint formula is. Do you need help with a specific problem?

Answer 2

Hi! :) I suggest you take a look at this website: http://www.purplemath.com/modules/midpoint.htm

Basically what you do is, you find the point that is exactly between two other points. :) hope this helped, have a nice day!