2007-03-03 14:37:16 · 4 answers · asked by arbpdx1 1 in Science & Mathematics ➔ Mathematics
f(x) = x^(-3)
This is not an exponential function, because exponential functions require a function of x to be in the exponent, not the base.
f(x) = 3^x is an exponential function.
2007-03-03 14:41:00 · answer #1 · answered by Puggy 7 · 1⤊ 0⤋
---background info here---
x^(-2) = the square root of x
8^(-3) = the cube root of 8 = 2
---end background info ---
actually, it is because
x^-3 is the cube root of x, not an actual exponent
(sorry, but x^3 is actually an exponential Function.... ask your math teacher)
2007-03-03 14:47:49 · answer #2 · answered by lifelesswonder 4 · 0⤊ 1⤋
x^-3 = 1/x^3, not cube root of x.
Exponential function involves x in exponent
2007-03-03 14:51:03 · answer #3 · answered by Lump 1 · 1⤊ 0⤋
YOu can't raise something to a negative number. It doesn't make any logical sense.
2007-03-03 14:39:44 · answer #4 · answered by Anonymous · 0⤊ 4⤋