Question

Im thinking B

Answer 1

The graph of f(x) = 2^(x + 4) shifts five units to the right when it is replaced with the graph of f(x) = 2^(x - k). What is the value of k?

-5

-1

1

5

Answer 2

correct

Answer 3

Thank You!

Answer 4

to shift f(x) 5 units to the right, you replace x with x-5

f(x) = 2^(x + 4)

f(x-5) = 2^((x-5) + 4)

f(x-5) = 2^(x-5 + 4)

f(x-5) = 2^(x-1)

Answer 5

Compare 2^(x-1) with 2^(x-k)

k is NOT -1 because you'd have x-k = x-(-1) = x+1

Answer 6

good call^^^^

Answer 7

oh...

Answer 8

tricky bast**ds

Answer 9

lol

Answer 10

Wait so its A?

Answer 11

no, you were right to think (x-1) but since they are asking for (x-k) k is 1 not -1

Answer 12

lol ok (they are tricky lol)

Answer 13

you will see why soon enough. we write vertex form with a minus sign, so they are getting you ready for that