Solve each inequality in Exercises 65–70 and graph the solution set on a real number line. |x^2 + 2x - 36| > 12

Key Concepts

Absolute Value Inequalities

Absolute value inequalities involve expressions that measure the distance of a number from zero on the number line. To solve an inequality like |A| > B, we consider two cases: A > B and A < -B. This approach allows us to find the range of values that satisfy the inequality, which is crucial for understanding the solution set.

Quadratic Functions

Quadratic functions are polynomial functions of the form f(x) = ax^2 + bx + c, where a, b, and c are constants. The graph of a quadratic function is a parabola, which can open upwards or downwards depending on the sign of 'a'. Understanding how to manipulate and analyze these functions is essential for solving inequalities involving quadratic expressions.

Graphing Solution Sets

Graphing solution sets on a real number line visually represents the range of values that satisfy an inequality. This involves marking points, using open or closed circles to indicate whether endpoints are included, and shading the appropriate regions. This visual representation helps in understanding the solutions and their implications in real-world contexts.