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I need help please. Do these functions increase or decrease,  and give the end behavior. (I)f(x)=4x-1/4

                 (II)f(x)=-1/2x+3

 Mar 28, 2017
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f(x)  =  4x- 1/4

 

In the form  mx - b......   m  = 4  = the slope....which is positive......then this function "Rises' [ increases ] from left to right....the end behavior on the left is toward negative infinity....and on the right it is positive infinity

 

 

f(x)  = (-1/2)x  + 3

 

The slope is negative  and this function "Falls" [ decreases] from left to right......the end behavior on the left is toward positive infinity....and on the right it is negative infinity

 

Here are the graphs of each  : https://www.desmos.com/calculator/g36i8bra7n

 

 

cool cool cool

 Mar 28, 2017

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