Will give !

evaluate the expression for f=-2

15+8f=

When f=-2,

15+8f= 15+8(-2)= 15-16 =-1

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~

i believe that the answer is

b. y-1=-2(x-4)

hope this !