4b Find the \( x \) values of the \( x \)-intercepts Write all solutions on the same line separated by a comma.

To find the \( x \)-intercepts of a function, you set \( y = 0 \) and solve for \( x \). For example, if you have a quadratic equation like \( ax^2 + bx + c = 0 \), you can apply the quadratic formula \( x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \). The solutions represent the \( x \)-intercepts, which are the points where the graph crosses the x-axis. Once you've found these values, simply list them in the format required, separated by commas. For instance, if the solutions are \( x = -2 \) and \( x = 3 \), you would express them as \( -2, 3 \). Keep in mind that factors of the quadratic can also help identify \( x \)-intercepts more easily!