College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter2: Functions And Graphs
Section2.6: Proportion And Variation
Problem 17E: Find the constant of proportionality. y is directly proportional to x. If x=30, then y=15.
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The graph shows the normal lines from the point (2, 0) to the graph of the parabola x = y2 . How many normal lines are there from the point (x0, 0) to the graph of the parabola if (a) x0 = 1/ 4, (b) x0 = 1/2, and (c) x0 = 1? (d) For what value of x0 are two of the normal lines perpendicular to each other?
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