Follow the steps below to answer the following question: For what values a and b is the line 2x + y = b tangent to the curve y = ax² at the point with x = -2? (A) Use the limit process, as we did in class, to find the slope of the tangent line to y = ax? when x = -2. (Your answer will contain an a.) The slope of the tangent line to y = ax? whenx = -2 is (B) What is the slope of the line 2x + y = b? The slope of this line is (C) In order for the line 2x + y = b to be tangent to the curve y = ax? at x = -2, we need for the slope of the tangent line to y = ax? at x = -2 to be the same as the slope of the line 2x + y = b. Thus in comparing (A) and (B), we find that a = (D) Lastly, in order for the line 2x + y = b to be tangent to the curve y = ax² at x = -2, the graphs of 2x + y = b and y = ax? must have the same y- coordinate at x = -2. Comparing the y-coordinates of the two graphs tells us that b =

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter1: Functions
Section1.2: Functions Given By Tables
Problem 32SBE: Does a Limiting Value Occur? A rocket ship is flying away from Earth at a constant velocity, and it...
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'Follow the steps below to answer the following question:
For what values a and b is the line 2x + y = b tangent to the curve y = ax² at the point with x = -2?
(A) Use the limit process, as we did in class, to find the slope of the tangent line to y = ax? when x = -2. (Your answer will contain an a.)
%3D
The slope of the tangent line to y = ax? when x = -2 is
(B) What is the slope of the line 2x + y = b?
The slope of this line is
(C) In order for the line 2x + y = b to be tangent to the curve y = ax? at x = -2, we need for the slope of the tangent line to y = ax? at x = -2 to be
the same as the slope of the line 2x + y = b.
%3D
Thus in comparing (A) and (B), we find that a =
(D) Lastly, in order for the line 2x + y = b to be tangent to the curve y = ax at x = -2, the graphs of 2x + y = b and y = ax must have the same y-
coordinate at x = –
-2.
Comparing the y-coordinates of the two graphs tells us that b =
Transcribed Image Text:'Follow the steps below to answer the following question: For what values a and b is the line 2x + y = b tangent to the curve y = ax² at the point with x = -2? (A) Use the limit process, as we did in class, to find the slope of the tangent line to y = ax? when x = -2. (Your answer will contain an a.) %3D The slope of the tangent line to y = ax? when x = -2 is (B) What is the slope of the line 2x + y = b? The slope of this line is (C) In order for the line 2x + y = b to be tangent to the curve y = ax? at x = -2, we need for the slope of the tangent line to y = ax? at x = -2 to be the same as the slope of the line 2x + y = b. %3D Thus in comparing (A) and (B), we find that a = (D) Lastly, in order for the line 2x + y = b to be tangent to the curve y = ax at x = -2, the graphs of 2x + y = b and y = ax must have the same y- coordinate at x = – -2. Comparing the y-coordinates of the two graphs tells us that b =
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