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458348084's Question
Math
Posted 5 months ago
answer all the questions
investigate the coordinates of the intersection point B between the circle and the line, as rr \rightarrow \infty
(a) The line through AA and CC has equation:
y=15x+2r\mathrm{y}=-\frac{1}{5} \mathrm{x}+2 r
(b) The x -coordinate of the point B is 2r2r2+1×\frac{2 r^{2}}{r^{2}+1} \times
(c) The yy-coordinate of the point B is 2r3r3+1x\frac{2 r^{3}}{r^{3}+1} \mathrm{x}
(d) The limit as rr \rightarrow \infty of the xx-coordinate of B is \infty (if your answer is \infty, write infinity).
(e) The limit as rr \rightarrow \infty of the yy-coordinate of B is \infty \qquad (if your answer is \infty, write infinity).
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Answer from Sia
Posted 5 months ago
Solution by Steps
step 2
The x-coordinate of point B is determined by the limit as r r \to \infty of 2r2r2+1 \frac{2r^2}{r^2 + 1} , which simplifies to 2 2
step 3
The y-coordinate of point B is determined by the limit as r r \to \infty of 2r3r3+1 \frac{2r^3}{r^3 + 1} , which also simplifies to 2 2
step 4
As r r \to \infty , the limit of the x-coordinate of B approaches 2 2
step 5
As r r \to \infty , the limit of the y-coordinate of B approaches 2 2
[question number] Answer
A
Key Concept
Limits and Intersection Points
Explanation
Understanding how to find the limits of coordinates as a variable approaches infinity is crucial in analyzing the behavior of functions and their intersections.

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