B. For y to be defined as a function of x, it must meet several criteria, including:  the numerical expression must be an equality or inequality  the expression must include both
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It means you should rearrange the equation so that x is on one side of the equal sign, and everything else on the other, with no "x" on the right side of the equation. For
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The exponent of each term in the equation is
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Hi kee, you dont need to take the square root of both sides to find the domain. y = sqrt(x^2  9) To find the domain, you take the equation in radical and set it <= to zero (x
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