To construct: the equations of two parabola and graph them and check is they are everywhere equidistant and if so in what sense.
Explanation of Solution
Given Information:
Use the concept of the derivative to define what it might mean for two parabolas to be parallel.
Calculation:
Two parabolas are parallel is they have the same derivative at every value of
As the derivative of any function at any function can be given by the slope of the tangent at that point so this means that their tangent lines are parallel at each value of
For example, two such parabolas are
Plot the graph of two parabolas.
The parabolas are everywhere equidistant as long as the distance between them is always measured along the vertical line, which will be perpendicular to the tangent at that point.
Chapter 2 Solutions
Advanced Placement Calculus Graphical Numerical Algebraic Sixth Edition High School Binding Copyright 2020
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