Question

Estimate graphically the local maximum and local minimum of f(x) = 4x^2 + 3x + 2

Answer 1

@torobi Could you find f'(x) ?

Answer 2

no

Answer 3

Do you know differentiation?

Answer 4

no

Answer 5

@ash2326 how do you do it by differentiation?"What do you do after you differentiate it?

Answer 6

@torobi I suggest you graph it using an online graphing calculator, I am sure that it would be able to give you all what you need. All the best.

Answer 7

how do u find f(x)

Answer 8

thx

Answer 9

We can equate it to 0, to get the local max or min. Differentiation gives the slope, for a mx or min, any curve will have the slope 0.
\[f'(x)=0\]
solve for x, it'll be max or min.

Answer 10

@ash2326 yeah, you are right, as the slope of the tangent line would be horizontal which will equal to zero. Thanks!