Friday

April 18, 2014

April 18, 2014

Posted by **elle** on Sunday, May 20, 2007 at 7:10am.

Find the equation of the normal to y=loge(x+2) which is parallel to the line with equation y+3x-5=0

I am fine at solving these sorts of equations when they give me one equation and an provide a given x value but in this question i have no idea what i am meant to be doing... Please help!!

Put the second equation in slope intercept form

y=-3x +5 slope is -3

So what is the slope of the tangent to

y=ln(x+2)

slope= 1/(x+2)

so the inverse negative slope will be

- (x+2), this has to equal -3x

set them equal, and you have the x where it occurs.

Put that x into the log equation, and find y.

y=mx +b

You have y, m, x, solve for b.

**Related Questions**

Maths (Tangents and Normals) - find the points on the curve [(x^2 )+ (y^2) = 18...

calculus - conic sections question 1: verify that the point (3,2) lies on the ...

Maths (Tangents and Normals) - find the values of p and q if slope of the ...

math-equation of circle - Write the standard form of the equation of the circle ...

math - hi i would really appreciate some help solving this question ...

Algebra - 40 =15 x x - 20 This is a three part question>> first find the ...

the remainder theorem - Please Help!! - i'm really not sure how to do this ...

Physics - The question is: A small block of ice at 0oC is subjected to 10 g of ...

Quadratic Equations - The question is Is the point (-3, -2) a solution of the ...

ATTENTION WRITEACHER! - Thanks so much for your help on my english question. I ...