Kristin owns a bakery called kristin's cakes n' such and is considering lowering the price of her
cakes. kristin polls her customers and determines that she can sell 100 cakes each week when she
charges $25 each. she also discovers that for every $1 decrease in the price of the cake, she will sell
5 more cakes. the graph below represents kristin's projected weekly revenue for each decrease in
price

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

the 3rd on is correct

step-by-step explanation: