Identify the domain and range of each situation using words and inequalities. Peyton is training to run a half-marathon. One night, she runs a total of 10 miles. She runs the first 4 miles at a pace of 6 miles per hour, the next 5 miles at a pace of 7 miles per hour, and the last mile at a pace of 4 miles per hour.

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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

if she was to only spend a dollar she can get 1lb

step-by-step explanation: