Question

Select the response that creates an accurate formula for the sequence.

2, 3.5, 6.125, 10.71875, ...

(1 point)
Responses

y=2+1.75x

y is equal to 2 plus 1 point 7 5 x

y=21.5x

y is equal to 2 over 1 point 5 x

y=2(1.75)x−1

y is equal to 2 times 1 point 7 5 raised to the x minus 1 power

y=2(1.5)x

Answer 1

Choose: y = 2(1.75)^(x−1)

Reason: each term is multiplied by 1.75 (3.5/2 = 6.125/3.5 = 1.75), so it's a geometric sequence with first term 2 and ratio 1.75.