Find all functions f having the indicated property. The tangent to the graph of f at the point (x, y) intersects the x-axis at (x + 2, 0).

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter10: Radical Functions And Equations
Section: Chapter Questions
Problem 9CR
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Find all functions f having the indicated property. The tangent to the graph of f at the point (x, y) intersects the x-axis at (x + 2, 0).

Expert Solution
Given,

The tangent to the graph of y=fx at the point x, y intersects the x-axis at x+2, 0.

 

Slope of the tangent line passing through the points x, y and x+2, 0 is,

m=y-0x-x+2=-y2

Now since slope of the tangent line is the derivative of the given function. That is,

dydx=-y2dyy=-12dx

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