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anonymous

  • 5 years ago

Suppose that y is a linear function of x. a. Complete the table of values below. (2) x 0 3 6 ? y 4 10 ? 24 b. Write a linear equation expressing y in terms of x. y = ______________________ (3)

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  1. anonymous
    • 5 years ago
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    lol, can you make the question clear please? :)

  2. anonymous
    • 5 years ago
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    the general from of linear function is : y=mx + b m is the slope, b is a constant then plug the values of x from the table into the function. x=0, y=4 -> 4=m(0) +b -> b=4 so now we know the value of b the function will be -> y=mx + 4 then plug another value of x and y x=3, y=10 -> 10=3m+4 -> 3m=6 ->m=2 finally we have the complete linear equation : y=2x+4 so when you plug x=6, you'll get y=12+4=16 and when y=24-> 24=2x+6 -> 2x=18 -> x=9

  3. anonymous
    • 5 years ago
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    @ sstarica thats what the question looked like onlin haha

  4. anonymous
    • 5 years ago
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    @ dindtac how did you get b= 4

  5. anonymous
    • 5 years ago
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    by plugging x=0 and y=4 from the table

  6. anonymous
    • 5 years ago
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    plug that values of x and y into y=mx + b

  7. anonymous
    • 5 years ago
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    yea but then what about m?

  8. anonymous
    • 5 years ago
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    oh m times o

  9. anonymous
    • 5 years ago
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    plug another values of x and y from the table x=3 , y=10

  10. anonymous
    • 5 years ago
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    yes when you plug x=0 , it will be m times 0 and will left only b in the equation

  11. anonymous
    • 5 years ago
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    ok

  12. anonymous
    • 5 years ago
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    thanks

  13. anonymous
    • 5 years ago
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    so two problems down from this one we are working on, i put up one, could you look at it and help maybe

  14. anonymous
    • 5 years ago
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    yes, i'll help if i can

  15. anonymous
    • 5 years ago
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    k

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