A food truck vendor averages 150 tacos sold when the price per taco is 84. A study shows that the average number of tacos sold will increase by 25 tacos for every $1 that the price per taco lowered
Which equation models the food truck's average sales in dollars, s, in terms of the price per taco, x?

deez nu tz

step-by-step explanation:

, 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