Question

Help please!!!

Find F (0) for the function f (x)=e 3x+2. Round to the nearest ten-thousandth.

Answer 1

am lost

Answer 2

https://angel.spcollege.edu/AngelUploads/QuestionData/082a8813-ae6f-4e8a-b845-f8df950dc1ff/513643223177D22F1612.png# {655281aa-d9ee-4f04-a16f-10bd635e1241}

Answer 3

thats the link to the problem

Answer 4

That was an incomplete response. My computer froze.

f(0) = f(x) when x = 0.

So to evaluate f(0) for any function, f(x), simply plug in x = 0.

That holds true for whatever is "taking the place of the x." So if it said f(7), you'd plug in 7. Or for f(1.56), you'd plug in 1.56.

Answer 5

sorry computer froze had to reboot also

Answer 6

so my answer would be 2.00

Answer 7

Could you show what you did? That's not what I got.

I'm assuming the (3x + 2) after the e is an exponent?

Answer 8

am not sure what i did

Answer 9

should it be 6x

Answer 10

yes

Answer 11

Plug in x = 0 and solve.

e^(3(0) + 2) = e^(0 + 2) = e^2...

Answer 12

wow I dont understand

Answer 13

Alright, first, just look at the exponent. Pretend for a second that the problem is f(0) = 3x + 2 and it asks you to solve. Can you solve 3x + 2 when x = 0?

Answer 14

ok

Answer 15

0+2

Answer 16

So, the answer is 2, yes?

Answer 17

ok thank u

Answer 18

yes 2

Answer 19

So you can figure out that f(0) = 3x + 2 = 2.

Now, it's the same thing, but you have one more step. Instead of the problem being 3x + 2, it's f(x) = e^3x+2.

So solve (3x+2) when x = 0, then that number is your exponent for e.

Answer 20

3(2)+6=12

Answer 21

I don't understand where this 6 is coming from. The equation is e^3x+2. Plug in 0 = x and solve.

It would help me more to help you if you showed your work so I can see where you're going wrong.

Answer 22

3x2

Answer 23

Why are you multiply 3 and 2? It's not 3 times 2, the "X" is a variable. It doesn't stand for multiplication, but "3 times x." X is an unknown.

Answer 24

oh that is what i thought i had to do what take the 3 times the 2 because i thought i had to use it to the power and thats where the 6 came in

Answer 25

No. It's 3x + 2, and the problem gives you x = 0. So plug in 0 = x, and solve. Then take that and raise e to that power.

Answer 26

so then if i did that I would take 3x+5= 3(0)+2= 5

Answer 27

3 * 0 isn't 3. Anything multiplied by 0 is 0.

Answer 28

yes i know that so that would give me 2

Answer 29

Correct. but that isn't your final step. You still have e^2. So raise e to the second power, then round according to what the problem asks of you, and voila. You have it.

Answer 30

You solved for the exponent, but don't forget the e. You still have to do that part.

Answer 31

ok

Answer 32

7.38

Answer 33

You question requires that you round to the nearest ten-thousandth place. That is the hundredth place.

Answer 34

7.3800

Answer 35

What is e^2 to 7 decimal places?

Answer 36

I believe it would be 7.4

Answer 37

sorry I know I am frustrating you just have not done this kind of math before

Answer 38

You're not frustrating me. It's ok. The best way for me to help you is if you go step-by-step. I want you to write out the answer to e^2 to 7 decimal places.

Answer 39

0000074

Answer 40

Not quite, no. I assume to get e^2, you are using a calculator? Write out EXACTLY what the calculator says when you input e^2.

Answer 41

ok when i input e^2 in the calculator i get 7.38905609893065

Answer 42

Good. Now the ten thousandth place is 4 places after the decimal. To round off to the ten-thousandths place, round that decimal to 4 places.

Answer 43

that would be where the 0 is correct?

Answer 44

Yes. That is the 4th place after the decimal. But remember your rounding rules...

Answer 45

7.3891

Answer 46

Yes. Correct.

Answer 47

thank u. I am so sorry for all the trouble

Answer 48

No trouble at all. As long as you understand what you just did.

Answer 49

yes finally

Answer 50

Good