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1.10.1 Locate roots by change of sign (A-level only)

Card 1 of 20

If f(α)=0f(\alpha)=0f(α)=0, where does the graph of y=f(x)y=f(x)y=f(x) meet the xxx-axis?

A

At x=αx=\alphax=α.

B

The graph touches the axis without changing sign at x=0x=0x=0.

C

Before applying a sign-change argument to a rational function, check for zero denominators within the interval.

D

The function is strictly increasing or strictly decreasing throughout.

Card 1 of 20

1.10.1 Locate roots by change of sign (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.10.1 Locate roots by change of sign (A-level only)

20 flashcards on OCR (MEI) A Level Maths 1.10.1 Locate roots by change of sign (A-level only): the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.

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