EXAMPLES Find an equation of the tangent line to the parabola y--&x+9 at the point (2.-3). SOLUTION From the previous example, we know the derivative of Rx)=x²-x+9 at the number a is F(a)-2a-8. Therefore the slope of the tangent line at (2.-3) is F(2)-2(2)-8-. Thus an equation of the tangent line, shown in the figure, is -()-[
EXAMPLES Find an equation of the tangent line to the parabola y--&x+9 at the point (2.-3). SOLUTION From the previous example, we know the derivative of Rx)=x²-x+9 at the number a is F(a)-2a-8. Therefore the slope of the tangent line at (2.-3) is F(2)-2(2)-8-. Thus an equation of the tangent line, shown in the figure, is -()-[
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter3: Linear And Nonlinear Functions
Section: Chapter Questions
Problem 26MCQ
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