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March 27, 2015

March 27, 2015

Posted by **Daniel** on Sunday, April 7, 2013 at 1:29pm.

Beginning with the function f(x) = (0.8)^(x), state what transformations were used on this to obtain the functions given below.

a) g(x) = - (0.8)^(x) - 2

b) h(x) = (1/2) (0.8)^(x-2)

c) k(x) = (0.8)^(-3x+9)

These are the answers I have, (may be incorrect)

a) reflect across the horizontal axis

moved down by 2 units

b) moved right by 2 units

vertically compressed by (1/2)

c) reflect across the vertical axis

moved left by 9 units

horizontal compression by 3

Thanks.

- math -
**Reiny**, Sunday, April 7, 2013 at 3:41pmin c) I object to your horizontal movement

k(x) = (.8)^(-3x+9)

= (.8)^( -3(x-3) )

so moved to the right by 3 units

- math -
**Daniel**, Sunday, April 7, 2013 at 6:27pmThanks, glad I can correct that!

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