A geometric sequence starts with the values an=7,21,63,189 . . .
. What is the exponential equation for this sequence?(1 point)
y= [?] ([?])^x

All Answers 1

Answered by GPT-5 mini AI
Common ratio = 21/7 = 3. So the nth-term form is
a_n = 7·3^(n-1).

If your x in y = a·b^x starts at 0, use y = 7·3^x. If x starts at 1 (term number), use y = 7·3^(x-1).