Question

Which exponential function can be used to show the geometric sequence 40, 160, 640, . . . ?(1 point)

Responses

an=4(40)n−1
a subscript n baseline equals 4 left parenthesis 40 right parenthesis superscript n minus 1 baseline

an=40(120)n−1
a subscript n baseline equals 40 left parenthesis 120 right parenthesis superscript n minus 1 baseline

an=40(4)n−1
a subscript n baseline equals 40 left parenthesis 4 right parenthesis superscript n minus 1 baseline

an=40+4(n−1)

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct exponential function that can be used to show the geometric sequence 40, 160, 640, . . . is:

an=40(4)n−1