Consider the function represented by 9x + 3y = 12 with x as the independent variable. How can this function be written using
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X = -4 plus or minus radical 26. Steps and answer are in picture
The sequence is geometric, so
for some constant r. From this rule, it follows that
and we can determine the first term to be
Now, by substitution we have
and so on down to (D)
(notice how the exponent on r and the subscript on a add up to n)
Based on my calculations x= 1, -6
