# algebra

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find an equation of the line containing the given pair of points.
(-9,0) and (0,4)
what is the equation of the line?
y=?

• algebra -

slope = m = (4-0) / (0 -(-9)) = 4/9

y = (4/9) x + b
4 = 0 + b

so
y = (4/9) x + 4

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