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range 3b9b3
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Solution
f(x)>0
+1
Interval Notation
(0,∞)
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Solution steps
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Function range definition
The set of values of the dependent variable for which a function is defined
Rewrite as
3b9b3=y
Simplify 3b9b3:13b2
13b2=y
Multiply both sides by b2
13=yb2
The range is the set of y for which the discriminant is greater or equal to zero
Discriminant 13=yb2:12y
12y≥0:y≥0
Check if the range interval endpoints are included