Question

With exponential functions, the formula is
f(x) = b^(x-h) + k
The h moves it left or right.
The k moves it up or down.
If h is negative, which way will it go: left or right?
If k is negative, which way will it go: up or down?

Answer 1

Okay, so if the function were f(x) = 11^x
And the function is moved right 5 and down 8
the new function g(x) = 11^(x+5) - 8
????

Answer 2

@FutureMathProfessor

Answer 3

What do you mean?

Answer 4

Talking to yourself?

Answer 5

:)

Answer 6

No. He said something. he must've deleted the comment DX

Answer 7

He said that 11^x was completely out of the realm. And I don't see how

Answer 8

Ugh, can someone please just explain DX

Answer 9

When a function is expressed in the form
f(x)=a^(x-h)+k
h and k represent translations to the right and to the top respectively.
Evidently, if any of the two is negative, the direction is reversed.

Answer 10

wait. so when it is (x-h) it goes right, and when it is (x+h) it goes left?

Answer 11

- right
+ left

Answer 12

Think of is as moving the graphing paper away while keeping the curve still.

Answer 13

is it that way with the k too?

Answer 14

Yes, if h and k are both positive.

Answer 15

The equivalent statement of what you just interpreted would be:

translation to the right if h is positive, and to the left if h is negative.

Answer 16

Primer just said the opposite of what you just said DX

Answer 17

@SavannahWillett , Me and @mathmate are saying the same thing.