Wednesday

July 30, 2014

July 30, 2014

Posted by **Mara** on Wednesday, October 19, 2011 at 12:09am.

frind the derivative of each function at the given number.

21. f(x)= -4x + 5 at 3

22. f(x)= -4 + 3x at 1

thanks

- College math -
**Reiny**, Wednesday, October 19, 2011 at 12:33amBoth of your equations are straight lines.

So they have the same slope no matter where you are on the line

21. y = -4x + 5

compare with y = mx + b, where m is the slope

slope = -4

let me know what you got for 22.

**Related Questions**

Calculus - I finished this problem but I wanted some feedback because I don't ...

Calc - a) y =ln(x-1) find dy/dx=? b) y=3 ln x - ln (1/x) where x >0, dy/dx...

Calculus - Use a symbolic differentiation utility to find the derivative of the ...

calculus - You are given the following function. f(x)= (8+x)/(1-8x) (a) Find the...

Calculus - Find the linear approximation L(x) of the given function at a, and ...

Calculus - If I have a function f(x), and am given its derivative, f'(x): may I ...

Math - How do you find the total number of maximum and minimum points of the ...

math - Differentiate the following function, much like problem 14 of section 3.2...

math - Let f be a real value function and x Î Df then 0 lim ( ) ( ) h f x h f x...

Calculus (Continuity and Differentiability) - Okay. So I am given a graph of a ...