PLEASE HELP A circle is represented by the equation below: (x + 2)2 + (y − 4)2 = 225 Which statement is true? The circle is centered at (−2, 4) and has a radius of 15. The circle is centered at (2, −4) and has a diameter of 15. The circle is centered at (2, −4) and has a radius of 15. The circle is centered at (−2, 4) and has a diameter of 15.

, 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

yes   because as the functions are graphed they eventually will intersect unless otherwise

step-by-step explanation:

its totaly b

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