Algebra

write a rule for the function of input(x) is 0,4,8,12 and output(y) is 5,7,9,11

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  1. a rule like an equation?

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  2. y= 3/5x + 5

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  3. y=1/2x+5

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  4. Dee is correct,

    for every increase of 4 in the x's the y's increase by 2
    so slope = 2/4 = 1/2
    so y = (1/2)x + b
    but (0,5) is the y-intercept, so b=5

    y = (1/2)x + 5

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