Question

Find f(x) if f'(x)=9x^(1/2) + 5 and f(1)=25.
I found the integral of f'(x) and plugged in 1 to f(x) and found the value of C but I keep getting the answer wrong. What I got was 6x^(3/2)+5x+14 but I keep getting marked wrong...Did I make a mistake?

Answer 1

Check your first x term. The coefficient is off.

Answer 2

So I did the calculations wrong when I plugged 1 into the integral of f'(x)?

Answer 3

Your first x term should be 4.5x^(3/2).

Answer 4

the question is translate to an equation but do not solve what is 39% of 71

Answer 5

how did you get 4.5x^(3/2)?

Answer 6

It wasn't the right answer:/ Unless the website I'm inputting my answer in has a glitch...

Answer 7

6x^(3/2) is correct

Answer 8

maybe because you enter the equation in a wrong format.

Answer 9

That is correct then so apparently the website is messed up.

Answer 10

for example, maybe it won't accept x^(1/2) but accepts √(x) even though both are the same

Answer 11

hmmm I think its just messed:/ It accepts answers with x^(1/2) since it convert its to the root form...well I'll just tell my professor. Thanks:)