Hello, i need help with this question: domain and range of: f(x) = square root of 8-3x sqaured. Your help would be highly appreciated.
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Originally Posted by unit_01 Hello, i need help with this question: domain and range of: f(x) = square root of 8-3x sqaured. Your help would be highly appreciated. $\displaystyle f(x) = \sqrt{8 - 3x^2}$ For the domain, where is 8 - 3x^2 negative? For the range, what is the smallest value the square root function can have? What is the largest? (In the given domain.) -Dan
hello For the domain, where is 8 - 3x^2 negative? For the range, what is the smallest value the square root function can have? What is the largest? (In the given domain.) what do u mean by that? like when can 8-3x^2 be negative?
Originally Posted by unit_01 hello For the domain, where is 8 - 3x^2 negative? For the range, what is the smallest value the square root function can have? What is the largest? (In the given domain.) what do u mean by that? like when can 8-3x^2 be negative? An number under the square root sign cannot be negative. So if 8 - 3x^2 is negative, then it can't be in the domain. -Dan
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