Saturday

March 28, 2015

March 28, 2015

Posted by **Anonymous** on Wednesday, June 20, 2012 at 3:56pm.

x^3+9x^2+33x+15 slope= 6

- calculus -
**Reiny**, Wednesday, June 20, 2012 at 6:45pmYou should have properly written the function as

y = x^3 + 9x^2 + 33x + 15

or

f(x) = x^3 + 9x^2 + 33x + 15

then dy/dx = 3x^2 + 18x + 33

but you want that to be 6

3x^2 + 18x + 33 = 6

x^2 + 6x + 9 = 0

(x+3)^2 = 0

x+3 = 0

x = -3

then f(3) = -27 + 81 - 99 + 15 = -30

The point is (-3,-30)

**Answer this Question**

**Related Questions**

Calculus: for mathmate - Find the slope of the tangent line to the graph of the ...

calculus - 8. Find the derivative of the function f(x) = cos^2(x) + tan^2(x) 9...

calculus - 1. Which of the following expressions is the definition of the ...

Calculus - I have a two part question that pertains to a curve (r(x)) and its ...

math - i have more than one question so if u no any of the answers please tell ...

calculus - f(x)=3-5x , (-1,8) find the slope of the tangent line to the graph of...

calculus - Find the slope of the tangent line to the graph of the function at ...

calculus - find a function f given that (1) the slope of the tangent line to ...

Calculus - Find the slope and the equation of the tangent line to the graph of ...

Calculus - Find the slope m of the tangent line to the graph of the function at ...