SOLUTION: Find the domain of f(x)=sqrt(20-12x) A. (-infiniti,0] B. [0, infiniti) C. [5/3, infiniti) D. (-infiniti, 20] E. (-infiniti, 5/3]

Question 509571: Find the domain of f(x)=sqrt(20-12x)
A. (-infiniti,0]
B. [0, infiniti)
C. [5/3, infiniti)
D. (-infiniti, 20]
E. (-infiniti, 5/3]
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
f(x)=sqrt(20-12x)
12x>20 When this occurs you have the square root of a negative number.
x>20/12
x>5/3
(5/3, infinity)
.
Ed
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