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help i'm mathematically crippled

What is the gradient of y = e^0.5𝑥 at the point where x = 4ln5?
(edited 5 years ago)
Reply 1
Avatar for I'm God
I'm God
19
Well, to find the gradient, you differentiate y.

Then, substitute in the value of x to get the gradient at the point.
Well what is dydx{dy \over dx} ? Once you have that just substitute in the value of x.
Original post by I'm God
Well, to find the gradient, you differentiate y.

Then, substitute in the value of x to get the gradient at the point.


i swear the derivative of e^x = e^x
(edited 5 years ago)
Original post by pokii
wait it's 25 isn't it?


What do you get when you differentiate e^0.5x?
Reply 5
Avatar for I'm God
I'm God
19
Original post by pokii
i swear the derivative of e^x = x


Yes, but you said that y = e^(x/2)
So, the differential of that will be 1/2(e^(x/2))
Original post by I'm God
Yes, but you said that y = e^(x/2)
So, the differential of that will be 1/2(e^(x/2))


oh it's 12.5?
wow. i'm bad at this. thanks for your help!
Reply 7
Avatar for I'm God
I'm God
19
Original post by pokii
oh it's 12.5?
wow. i'm bad at this. thanks for your help!


No worries. Practice makes perfect :smile:
Original post by I'm God
No worries. Practice makes perfect :smile:


Sorry to bother you boss man but can i yeet another question your way
Original post by I'm God
Yes, but you said that y = e^(x/2)
So, the differential of that will be 1/2(e^(x/2))


Please don't do questions for people ... I'd already asked a key question about their answer.
Original post by pokii
Sorry to bother you boss man but can i yeet another question your way


Ask away but please try the questions first and post your working :smile:
Original post by pokii
Sorry to bother you boss man but can i yeet another question your way


Yeah sure
Original post by Muttley79
Please don't do questions for people ... I'd already asked a key question about their answer.


I only gave the steps in the first post, but he had the working out wrong, so I showed him afterwards.
Original post by I'm God
I only gave the steps in the first post, but he had the working out wrong, so I showed him afterwards.


Please don't do that :smile: We just try to give hints not give answers.
Original post by Muttley79
Please don't do that :smile: We just try to give hints not give answers.


Fair enough, my apologies :colondollar:
Original post by I'm God
Fair enough, my apologies :colondollar:


It's good you want to help :smile: Maybe check out the rules for the Maths threads?

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