A party venue charges an event fee of $70 in addition to charging $20 per person at the party. Use the Ray tool to make a graph that shows C, the total cost of a party at this venue for p people at the party. Graph the ray by plotting two points. The first point selected must be the endpoint of the ray. The second point can be any other point on the ray.

, 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

fd

step-by-step explanation: