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Flashcards in exponential and logs Deck (23)
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1

What equation is an exponential function?

y=#^x needs variable in exponent

2

Exponential growth equation

y=#^x #>1

3

Exponential growth graph

Starts at asymptote ends at exponential

4

Exponential decay equation

y=#^x #<1

5

Exponential decay graph

Starts at exponential ends at asymptote

6

How do you find the y intercept for an exponential function?

Make x=0

7

What is 3^0

1

8

How do you find a horizontal asymptote for exponential functions?

The number added:c

9

What is the horizontal asymptote in y=3^x+5

5

10

What is the horizontal asymptote in y=2^x-4

-4

11

What is the horizontal asymptote in y=-5^x+1

1

12

What is the horizontal asymptote in y=3^x

0

13

How do you change exponents to logs?

base^exponent=answer log_base(answer)=exponent

14

To solve a log equation you....

make it an exponnential equation

15

to solve an exponential equation you...

make it a log equation

16

When you add same base logs you can _____________ the answers

multiply

17

When you subtract same base logs you can _____________ the answers

divide

18

When there is a coefficient in front of a log you make it _________

the exponent

19

When you have an exponent on a log you can move it to...

the coefficient

20

log1010=

1

21

How do you change 1 into a log?

log1010  or any other numbers that match

22

When do things cancle in logs?

when the base and number are the same they become one

23

What does log553 become?

3