Thursday

August 28, 2014

August 28, 2014

Posted by **Cristina** on Saturday, September 17, 2011 at 3:48pm.

***determine the intervals over which the function is increasing, decreasing, or constant***

32. f(x)=x^2-4x

33. f(x)=√x^2-1 (that's square root of x^2-1)

thank you so much for the help =)

- Pre-Calculus -
**MathMate**, Saturday, September 17, 2011 at 9:18pmCalculate f'(x).

For increasing, find the interval on which f'(x)≥0, and for decreasing, find interval on which f'(x)≤0.

For example,

f(x)=x²

f'(x)=2x

f'(x)≥0 when x≥0, so

f(x) is increasing when x∈ [0,∞).

For decreasing, you'd go through the same process for f'(x)≤0.

**Related Questions**

Pre-Calculus - I'm trying to finish up my pre-cal homework and I am stuck on 2 ...

Calculus - I'm trying to finish up my pre-cal homework and I am stuck on 2 ...

Pre-Calculus - Determine the open intervals on which the function is increasing...

Honors Pre-Calculus - The prompt says "Graph each function. Determine the ...

Math - determine the intervals over which the function is increasing, decreasing...

pre calculs - for the given function f(x)=3x^2=7x=2 find the intervals for ...

Calculus - find the intervals where the function is increasing and the intervals...

Calculus - Consider the function f(x) = x - lnx. Find the intervals on which f(x...

calculus - find the intervals on which the function is increasing, decreasing, ...

Pre Cal - a Function f is defined as f(x)=3*2^x a)is f increasing or decreasing...