Question

Select the response that creates an accurate formula for the sequence 2, 3.5, 6.125. 10.71875 . . .. (1 point)

O y= 1.5z

O y=2+1.75x

O y=2(1.5)
O y=2(1.75)z-1

Answer 1

Choose the last option. The sequence is geometric with ratio 3.5/2 = 1.75, so the nth term (if z is the term number starting at 1) is
y = 2(1.75)^{z-1},
which yields 2, 3.5, 6.125, 10.71875, ...