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avatar+45 

For which intervals is the function positive?

(0,4)

(2,2.5)

(4,∞)

(−∞,−2)

(−2, 0)

(−3,1)

 

 Mar 15, 2019
 #1
avatar+102355 
+2

The function is positive on the x intervals where it is above the x axis

 

Note that it is postive from  x = -infinity to x = -2

And from x = 0  to x = 4.....so

 

(-inf, -2)    and (0, 4)

 

 

cool cool cool

 Mar 15, 2019

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