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anonymous

  • one year ago

which ordered pair is a solution of y=5x a.-2,10 b.-5,25 c.-3,15 d.-2,-10

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  1. anonymous
    • one year ago
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    First You need to try substituting the options

  2. anonymous
    • one year ago
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    The correct answer will be equal on both sides of the equation

  3. texaschic101
    • one year ago
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    this is just a matter of substitution to see which one is correct I will do the first one.. y = 5x (-2,10)...x = -2 and y = 10 now we sub 10 = 5(-2) 10 = -10 ...this is incorrect and is not a solution. now sub in your points and find the one that is correct

  4. anonymous
    • one year ago
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    is it b?

  5. texaschic101
    • one year ago
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    when you sub in your points....does it make the equation true ?

  6. anonymous
    • one year ago
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    im a bit confused

  7. anonymous
    • one year ago
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    on substituting

  8. texaschic101
    • one year ago
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    your points are set up like this....(x,y) y = 5x (-5,25)....x = -5 and y = 25 now sub 25 = 5(-5) 25 = -25.....is this correct ?

  9. anonymous
    • one year ago
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    For substituting for this problem you are going to simply take the first number in the problem and replace it with the X and replace the second number for the y and then multiply the x number by five since they are coordinates.

  10. anonymous
    • one year ago
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    no

  11. texaschic101
    • one year ago
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    so b is not the solution. Now try your other answer choices and find the one that is true

  12. anonymous
    • one year ago
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    oh it's D

  13. texaschic101
    • one year ago
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    BINGO...yes...you got it

  14. anonymous
    • one year ago
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    thank you

  15. texaschic101
    • one year ago
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    sure thing :)

  16. anonymous
    • one year ago
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    wait

  17. texaschic101
    • one year ago
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    ok

  18. anonymous
    • one year ago
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    can you help me again...

  19. texaschic101
    • one year ago
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    I can try

  20. anonymous
    • one year ago
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    which ordered pair is a solution of -7x+2 a. 1,2 b. 8,-54 c.5,-35 d.1,-7

  21. anonymous
    • one year ago
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    now i was worming out this one and thinking it's c

  22. anonymous
    • one year ago
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    working*

  23. texaschic101
    • one year ago
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    do it the same way......oh...wait....this is not the entire equation...whats it equal to ?

  24. anonymous
    • one year ago
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    yeah it's a question mark next to the 2

  25. texaschic101
    • one year ago
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    I do not understand....it is not an equation if there is no equal sign. this is what would happen if I just subbed in the points... -7x + 2 (1,2)...x = 1 and y = 2 now sub -7(1) + 2 = -7 + 2 = -5 there is not even a y in your equation....I cannot solve this

  26. anonymous
    • one year ago
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    sorry it's y= -7x+2

  27. anonymous
    • one year ago
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    @texaschic101

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