A. 1 - x^3
B. (1 - x^3)^2
C. tan x
D. e^4x - 2
E. none of these
2006-07-19 05:56:29 · 4 answers · asked by Olivia 4 in Science & Mathematics ➔ Mathematics
To solve this, you can either look at a graph or take the first derivative of the equation. I would say none of the above! The first one is almost correct. However, at x=0, the derivative is also 0, indicating that the slope is 0. Because 0 is not negative (decreasing) this doesn't decrease for ALL values of x. It does for all but x=0. If you need more help, send me a message.
Don't listen to the people below me, they are incorrect. A is definitely the bait/trick answer!
2006-07-19 06:02:18 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Answer A. 1 - x^3 is decreasing for all values it is defined. Because any number cubed keeps its sign, in the negative domain, the number will be 1-(-a) = 1+a, in the positive domain, the number will be 1-(a) = 1-a. 1+a will of course be larger than 1-a.
2006-07-19 06:02:35 · answer #2 · answered by canejacket 2 · 0⤊ 0⤋
only A, at the first look...
2006-07-19 07:48:21 · answer #3 · answered by Hibernating Ladybird 4 · 0⤊ 0⤋
"a"
2006-07-19 06:03:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋