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anonymous

  • one year ago

Malia is using an online calculator to calculate the outputs f(n) for different inputs n. The ordered pairs below show Malia's inputs and the corresponding outputs displayed by the calculator: (1, 4), (2, 9), (3, 14), (4, 19) Which of the following functions best represents the rule that the calculator uses to display the outputs? f(n) = 5n − 1 f(n) = 5n + 1 f(n) = 4n + 1 f(n) = 4n − 1

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  1. anonymous
    • one year ago
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    @madhu.mukherjee.946

  2. anonymous
    • one year ago
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    @pooja195 @ganeshie8 @Hero @Abhisar @iambatman

  3. madhu.mukherjee.946
    • one year ago
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    it is the first option

  4. madhu.mukherjee.946
    • one year ago
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    find the slope between two points do you know how to do that?

  5. madhu.mukherjee.946
    • one year ago
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    y2-y1 over x2-x1

  6. madhu.mukherjee.946
    • one year ago
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    9-4/2-1=5

  7. madhu.mukherjee.946
    • one year ago
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    now y = mx +b you got m=5 so y = 5x + b

  8. madhu.mukherjee.946
    • one year ago
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    then temporarily plug in a point (x, y) and solve for b

  9. madhu.mukherjee.946
    • one year ago
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    9=5(2) + b

  10. madhu.mukherjee.946
    • one year ago
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    -1=b

  11. madhu.mukherjee.946
    • one year ago
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    now if you consider the real equation without putting x,y it will be y=5x-1 or f(n)=5n-1 we have considered f(n)=y

  12. madhu.mukherjee.946
    • one year ago
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    y=mx+b is the equation for the straight line

  13. anonymous
    • one year ago
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    THANKSSS @madhu.mukherjee.946

  14. madhu.mukherjee.946
    • one year ago
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    welcome

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