Let f(x) = 2 to the x power. Show that a horizontal shift of k units is equivalent to scaling by a factor of 2 to the k power.
This is on the test review and may appear as a bonus, and I could seriously seriously use it. I just want to be a Bio teacher! This is my final math. Help me.
2006-09-13 12:10:33 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2^(x+k)=2^k*2*x...done
2006-09-13 12:12:14 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
f(x) = 2^x, if shifted horizontally by k, then
f(x) = 2^(x+k) = (2^x)*(2^k)
2006-09-13 12:13:32 · answer #2 · answered by godmike 2 · 0⤊ 0⤋
ok. so f(x) = 2^x
if you replace x by x+k (horizontal shift by k units), then
f(x) = 2^(x+k) = 2^x * 2^k
so there.
2006-09-13 12:13:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Biology teachers should take more math than just pre-calc. This is what's wrong with our educational sysytem.
2006-09-13 12:13:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
can't do it, sorry
2006-09-13 12:13:14 · answer #5 · answered by agropelter 3 · 0⤊ 1⤋