Saturday

April 18, 2015

April 18, 2015

Posted by **Skye** on Thursday, February 7, 2008 at 5:27pm.

5x^2+y^2=14 at (1,3).

P.S: It's calculus.

So far I know this much

10x+2y(dy/dx)=o

-10x -10x

___________________

2y(dy/dx)= -10x

(dy/dx)= -10x/2y= -5x/y

m= -5(1)/3= -5/3

y=mx+b

3= -5/3(1)+b then what?

- Math -
**Reiny**, Thursday, February 7, 2008 at 5:35pmahh, so close!

solve for b in your last equation

I get b = 14/3

put m and b into your y = mx + b and you are done

**Answer this Question**

**Related Questions**

how about his one - -7+ 5x = 10x-2? im not sure I know its -1, but im not sure ...

Intermediate Algebra - Determine whether the point (1, 8) is a solution of the ...

Math Algebra 1 - i was wondering if anyone could help me on this problem. expand...

Pre-algebra - Solve. 29x 2(9x 0.455) = 10x + 0.525 Give us you thinking on ...

math - f(x) = x^2 + 10x + 24 =(x^2 + 10x)+ 24 =(x^2 + 10x + 25 - 25) + 24 f(x...

math - 1. Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 ...

Algebra HELP! - Consider the function h as defined. Find functions f and g so (f...

Algebra I - Thanks Reiny, but I'm still lost. I understand how you multipled by ...

algebra - Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 ...

calculus - f(x,y)=x^2+2y^2 use the gradient vector f(5, 1) to find the tangent...