Click here to load reader

Y9 algebra 1 Inequalities

  • View
    35

  • Download
    2

Embed Size (px)

Text of Y9 algebra 1 Inequalities

  • Inequalities

    Bytheendofthislessonyouwillbeableto:

    Readandrepresentinequalities.

    Solveinequalitiesalgebraically.

  • inequalities

  • nislessthan3

    xisgreaterthanorequalto8

    aislessthanorequalto5

    n

  • isequivalentto

    xisgreaterthan3butlessthan8

    aisgreaterthan4butlessthanorequalto9

    3

  • Representtheinequalitiesonthenumberline.

  • Representtheinequalitiesonthenumberline.

  • +7 +7

    Inaninequality,youcanaddhesamenumbertobothsidesandtheinequalityremainstrue.

  • Inaninequality,youcansubtractthesamenumbertobothsidesandtheinequalityremainstrue.

    3 3

  • Inaninequality,youcanmultiplybythesamepositivenumberbothsidesandtheinequalityremainstrue.

    x3 x3

  • Inaninequality,youcandividebythesamepositivenumberbothsidesandtheinequalityremainstrue.

    2 2

  • Whathappensifyoumultiplytheinequalitybyanegativenumber?

    x(1) x(1)

  • Whathappensifyoudividetheinequalitybyanegativenumber?

    (2) (2)

  • Whenyoumultiplyordivideaninequalitybyanegativenumber,thesignmustbechangedaround.

  • Solvetheinequalityandrepresentthesolutiononanumberline.

    15+3x

  • Solvetheinequalityandrepresentthesolutiononanumberline.

    187x+4

  • Solvetheinequalityandrepresentthesolutiononanumberline.

    194x3

  • Solvetheinequalityandrepresentthesolutiononanumberline.

    45x2x3

  • 3(x1)
  • 2(x1)>x7

  • SolvefromBook:pages62&63

    Page 1Page 2Page 3Page 4Page 5Page 6Page 7Page 8Page 9Page 10Page 11Page 12Page 13Page 14Page 15Page 16Page 17Page 18Page 19Page 20Page 21Page 22Page 23