The cut out part says to determine the intervals on which the following function is continuous

Use the continuity of the absolute value function ((x | is continuous for all values of x) to de 1( x ) = 1x2+ 3x- 71 Select the correct choice below and, if necessary, fill in the answer box to complete your O A. The function is continuous on (Simplify your answer. Type your answer in interval notation. Use a comma to se O B. The function is not continuous anywhere