Question

What is a power?

Answer 1

It is the derivative of work with respect to time.

Answer 2

i think he means a power as an exponent

Answer 3

a power is a one to one bijunction or something :-P

Answer 4

?

Answer 5

i am confused?

Answer 6

What does derivative mean?

Answer 7

its a type of financial instrument

Answer 8

simply, the power is an operand within the exponentiation operation. When it is a positive integer, it coressponds to repeated multiplication.

Answer 9

okay. ummmm What is a power?

Answer 10

Power is the name of cricketing bat manufacturing company which Sachin and Brain Lara used..........lol

Answer 11

If you want to write 5*5*5*5*5*5. It is convenient to write it as 5^6. Or 4*4*4... x times, we can write it as 4^x

Answer 12

2^3, the power is 3. power is a synonym for exponent

Answer 13

a couple of simple sentences please.

Answer 14

but sometimes we say 'power ' function, i believe that means
y = ax^b

Answer 15

is a power just that small number. or the base and the exponent? cause i think its both. not sure though

Answer 16

, a power function is y = a x^n , but an exponential is y = a*b^x

Answer 17

the power is just that little number.

Answer 18

Power is the number written above, not both

Answer 19

okay! thanks! then what are the big number and small number called together?

Answer 20

And by the way How do you describe exponentially?

Answer 21

are together they called an exponent?

Answer 22

exponent is just another name for power.

Answer 23

okay.

Answer 24

so then what are the big and small number called together?

Answer 25

the whole thing together is called a number

Answer 26

ha ha okay...... and a power is a unit, right?

Answer 27

in physics

Answer 28

even better: it's called an expression, or a symbol.

Answer 29

and do you know the answer to this?

How do you describe exponentially?

Answer 30

is a power a unit in math too?

Answer 31

an expression, thanks!

Answer 32

what to describe exponentially?

Answer 33

nope. Math is unitless

Answer 34

oooooh really cause my math teacher said "Powers are units".

Answer 35

maybe he meant positive integers.

Answer 36

maybe

Answer 37

im not sure. my math is mostly in german. :(

Answer 38

and by the way. How do you describe exponentially?

Answer 39

What to describe exponentially?

Answer 40

you wave your hands and say something like 'this thing grows exponentially!'

Answer 41

so if something grows exponentially, it grows like an exponent. for example. 2 to the fourth power "grows exponentially?"

Answer 42

is that right?

Answer 43

if you say that y depends on x , then we say y is growing exponential as x increases
y = a*b^x, for some b>0 , a!=0

Answer 44

yes; when people describe a function as 'growing exponentially', they mean that the graph resembles the graph of an exponential function, with it's value proportional to some constant base to some variable power.

Answer 45

that sort of made sense. thank you!

Answer 46

so if you have a bank account that doubles every month , let y be the amount total, and suppose you start with a principle of $5.
y = 5*2^t