Rational Numbers

For the function , we need to find the values of where the function is undefined or discontinuous. Step 1: The function will be undefined if the denominator . Solving for : Using the quadratic formula: Step 2: The function will also be discontinuous if the expression inside the square root is negative, i.e., . After solving the inequalities and considering the points where the function becomes undefined, we find that the function is discontinuous at and . % Final Answer The discontinuous points are and .

We are given the equation: Multiplying both sides of the equation by to eliminate the denominators: Expanding the terms on the right-hand side: Now, collecting like terms and equating the coefficients of , , and the constant terms on both sides, we find: Now, calculate : Thus, the correct answer is .