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

asked Mar 26, 2017 163k views

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3 votes

Slope Formula:

$a= (\Delta y)/(\Delta x) \\ a= (5-1)/(1-2) \\ a=-4$

b-value:

$y=ax+b \\ 5=(-4)* 1+b \\ b=9$

Function:

$\boxed {f(x)=-4x+9}$

Aaditya Singh answered Mar 30, 2017

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