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anonymous

  • one year ago

how do I solve 8x + 4y = 16 on a TI 89?

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  1. Nnesha
    • one year ago
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    you hve to solve for y

  2. Nnesha
    • one year ago
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    what's the statement ? do you need to graph it ? or find x-intercept .y-intercept ?

  3. anonymous
    • one year ago
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    I just need to solve 8x+4y=16 and x+y=2 solve the system but I want to know how to do it on my TI89

  4. Nnesha
    • one year ago
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    okay to put that into calculator (not online) you have to solve both equations for y

  5. Nnesha
    • one year ago
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    then press y= button type both equation Y_1= first equation y_2= 2nd equation

  6. Nnesha
    • one year ago
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    then hit the graph button

  7. Nnesha
    • one year ago
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    |dw:1441040249056:dw| when you press y= button u will see y_1= y_2= y_3= so you need to solve 8x+4y=16 for y

  8. Nnesha
    • one year ago
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    how would you cancel out `8x` from left side ?

  9. Nnesha
    • one year ago
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    x+y=2 cancel out x from left side how would you do that ? add subtract divide subtract ?

  10. Nnesha
    • one year ago
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    no |dw:1441041208353:dw| subtract x both sides

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