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10-02-2016
Mathematics

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Vertex of (1,5) and passes through (2,1). What is the equation in vertex form

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Аноним Аноним

10-02-2016

Slope Formula:

[tex]a= \frac{\Delta y}{\Delta x} \\ a= \frac{5-1}{1-2} \\ a=-4[/tex]

b-value:

[tex]y=ax+b \\ 5=(-4)\times 1+b \\ b=9[/tex]

Function:

[tex]\boxed {f(x)=-4x+9}[/tex]

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