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Anhafaleddau

Anhafaleddau. 22. (a) (i) Datryswch yr anhafaledd n + 6 < 3n – 5. [2] (ii) Ysgrifennwch y rhif cyfan mwyaf sy’n bodloni’r anhafaledd hwn . [1] 23. (a) ( i ) Datryswch yr a hafaledd 7x – 3 < 14 + 4x [2] (ii) Ysgrifennwch y rhif cyfan lleiaf sy’n bodloni’r anhafaledd hwn . [1]

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Anhafaleddau

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  1. Anhafaleddau • 22. (a) (i) Datryswch yr anhafaledd n + 6 < 3n – 5. [2] • (ii) Ysgrifennwch y rhifcyfanmwyafsy’nbodloni’ranhafaleddhwn. [1] • 23. (a) (i) Datryswch yr a hafaledd 7x – 3 < 14 + 4x [2] • (ii) Ysgrifennwch y rhifcyfanlleiafsy’nbodloni’ranhafaleddhwn. [1] • (a) (i) Datryswch yr anhafaledd 8x + 11 > 2x – 13 [2] • (ii) Ysgrifennwchwerthcyfanrifollleiaf x sy’nbodloni’ranhafaleddhwn. [1] • (a) Ad-drefnwch yr anhafaledd 3 – 3n < 9 – 5n ar y ffurf n < rhywrif. [2] • (b) O wybodbod n hefydynbodloni’ranhafaledd 3n > -6, ysgrifennwchholl • werthoeddcyfanrifol n sy’nbodloni’rddauanhafaledd. [2] • (a) Lluniwchechelinau y o -6 i 10 ac echelinau x o -4 i 5. • (b) Ar yr echelinau, lluniwch y rhanbarthsy’nbodlonipob un o’ranhafaleddaucanlynol x ≤ 3 • y ≥ -1 • y ≤ 3x – 2 • Gwnewchynsiwreichbodyndangosynglir y rhanbarthsy’ncynrychiolieichateb.

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