Recent content by VBoy336

ok thanks alot,

so the instant.. rate of change is 8 ? aha

I'm having problem finding derivative: f(x) = 1/2x^2 + 3x^3 i know there is a shortcut way to derivative, but i did the long way and got 9x^2 - x is that correct? if not, can you tell me the step to solve it? thanks

@5 , do you mean 21 ? and i don't think i learn gradient yet, in class, when we finding instantaneous rate of change, we use limit x approaching a number, then solve it, is there another way to find the instantaneous rate of change in this problem?

I'm having problem with a problem =) can someone help. finding derivative: f(x) = 1/2x^2 + 3x^3 i know there is a shortcut way to derivative, but i did the long way and got 9x^2 - x is that correct? if not, can you tell me the step to solve it? thanks

for this one, y = x^2 - 4 Find instantaneous rate of change [3,5] i don't really get what you are saying, sorry, so how do I solve it urg

can you guys help me how to do this problem? f(x) = 3x^2 - 1 (3,8) Find slope and tangent line, I have answer 6, is that right? and can you guys show the step to get the answer, thanks =) (tangent line i already know how to do) oh and this one, y = x^2 - 4 Find...