Given f(x) and g(x) = k· f(x), use the graph to determine the value of k

if g(x) = k•f(x), then we know g(-3) = k•f(-3).  I'd pick x=-3 because of the two dots on the graph, which tell us:

    g(-3) = -2   and   f(-3) = 1

So, -2 = k•1 or k = –2

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.