Question

any help to find b?

Answer 1

@Unam your post?

Answer 2

Sorry here ....

Answer 3

So HOW to find TANGENT LINE?

Answer 4

WHAT's its FORM?

Answer 5

Yeah sorry ma bad...I mean all of them... if u could explain it like mathg8 did today, like step by step....

Answer 6

This is a derivative question I guess

Answer 7

Wow, so apply what math showed you,
however considering TANGENT AS VELOCITY :)

Answer 8

Great guess :)

Answer 9

that's what i'm bad at...I just don't get the whole thing...I wish mathg8 is still around to sho it without having to go through verbally conversation... :)

Answer 10

I wish math here, too. He's clever!

Answer 11

Anyway, here's the concept!

Answer 12

VELOCITY, TANGENT, .. are application of DERIVATIVE!

Answer 13

Can you find tangent line now?

Answer 14

Do you know the SLOPE y intercept form?

Answer 15

@Unam can you give it a try?

Answer 16

thanks C ...what can I do ?

Answer 17

@unam your savor, here he comes :P

Answer 18

Tangent line equation!

Answer 19

LOL

Answer 20

I told Unam that they're just the same derivative, but he insist on "I wish math here :P"

Answer 21

@ch haha...sorry i'm trying

Answer 22

here's what i got so far f'(-4) = 12(-4)^2

Answer 23

f(x) = 4x^3

Answer 24

SO what i got is for part a and b but i'm trying to get c :)

Answer 25

then what you do next, pretending math show you how to find velocity?

Answer 26

I forgot..short memory