(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Question: Determine the equations of both lines that are tangent to the graph of f(x) = x^{2}and pass through point (1,-3).

2. Relevant equations

Some of the equations that I could use for this problem are:

y-y1=m(x-x1) (Point-slope Equation)

the derivative of the function f(x) from first principles (the limit of the difference quotient, as h approaches 0)

3. The attempt at a solution

First, I took the derivative of the function x^{2}.

As a result,

f`(x) = 2x

But I'm not sure on how to go from here.

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# Homework Help: Equation of both lines that are tangent to the graph y=x^2

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