# 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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