1) The diagram shows the graph of y = x² - 2x - 8. The graph crosses the x-axis at the point A and has a vertex at B. a) Factorise x² - 2x - 8. b) Write down the coordinates of i) point A ii) point B. A O B

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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1) The diagram shows the graph of y = x² - 2x - 8. The graph crosses the x-axis at the point A
and has a vertex at B.
a) Factorise x² - 2x - 8.
b) Write down the coordinates of
i) point A
ii) point B.
A 0
B
Transcribed Image Text:1) The diagram shows the graph of y = x² - 2x - 8. The graph crosses the x-axis at the point A and has a vertex at B. a) Factorise x² - 2x - 8. b) Write down the coordinates of i) point A ii) point B. A 0 B
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