Monday

March 30, 2015

March 30, 2015

Posted by **John** on Thursday, October 20, 2011 at 7:28pm.

1.) f(x) = 2x^3 + 3x^2 + 36x

x=?

2.) g(t) = |5t − 4|

t=?

- Calculus -
**Steve**, Friday, October 21, 2011 at 10:56amNo ideas at all?

Critical numbers are min, max, point of inflection, roots

min and max occur where f' = 0

inflection is where f'' = 0 and f' ≠ zero

The absolute value problem is tricky, since you can't rely on f' to get the min/max.

Observe, however, that |5t-4| is always at least zero.

It is zero only where 5t-4 = 0.

**Answer this Question**

**Related Questions**

Calculus - What are the critical numbers of the function: f(x)=2x^3-3x^2-36x+14 ...

Calculus - Find the critical numbers of the function f(x)=x^1/6−x^−5...

CALCULUS HELP - Find the second derivative for the function 5x^3+60x^2-36x-41 ...

Calculus - Find the critical numbers of the function. h(t) = t3/4 − 5t1/4

Calculus (pleas help!) - Consider the function f(x)=12x^5+60x^4−100x^3+4. ...

Calculus - How do you find the critical numbers and the end points of this ...

Calculus - Find the critical numbers of the function g(t)=|5t-7| If you find g'(...

Math - Find any critical numbers of the function. (Enter your answers as a comma...

Algebra - Please help with this factoring problem: 2x^3/2 − 6x^1/2 + 4x^&#...

Math - Find the critical numbers of the function f(x)=x^(1/6)−x^(−5...