Question

y=e^(-x)-e trying to find the range.

Answer 1

Waht's the range of \( e^x \) ?

Answer 2

What's

Answer 3

not sure

Answer 4

I think 1

Answer 5

or 0

Answer 6

Ah ... go back to your class notes or text book and figure it out. Otherwise you'll never be able to answer this question.

No, {1} is not the range of e^x, nor {0}

Answer 7

Once you know that range of e^x, find the range of e^(-x); then the range of e^(-x)-e

Answer 8

You should definitely learn what the graph of y = e^x looks like. It's a very important function.

Answer 9

e\[ e ^{1}=e\]

Answer 10

Also you should know that e is a positive number and a positive number raised to ANY power is positive. So the range of y = e^x is the real numbers greater than 0

Answer 11

so where this is raise to a neg x does that mean it is all neg. numbers

Answer 12

\[ y^{-1} = 1/y \]

Answer 13

Hence if the range of e^x is all positive numbers, the range of e^(-x) is the reciprocal of all positive numbers, which is .....

Answer 14

NO!!!!!!!!! A positive number raised to ANY POWER AT ALL-POSITIVE, NEGATIVE, OR 0 IS POSITIVE!!!!!!!

Answer 15

You really should look up the graphs of these functions. So important.

Answer 16

i did i need to understand how to find it after looking at the graph

Answer 17

Please be patient I am just learning this sorry

Answer 18

So is the problem that you aren't quite sure what is meant by the term "range"?

Answer 19

yes

Answer 20

So I am going to draw you a picture and see if we can clarify.