Answer:
(a) yes it does
(b) the rate is constant because the rate of change (slope) is the same throughout the function.
(c) The rate, or rate of change, is -1/2.
y1 - y2/x1-x2
4 - 2/3 - 9
2/-6
-1/2
Answer:
6457 + 7925 = 14382
2 1/2 is also 2.5, therefore to calculate each liter, just 60/2.5, so the answer is $24
