Next, we need to find the roots of the equation. We can use the 'discriminant' to show how many roots there are, if any: \({b^2} - 4ac\textgreater0\) means there are two roots \({b^2} ...

A quadratic equation is drawn as a curve on a ... We can use these values to find the values of y for the graph. Step 4 – Repeat this process for the remaining values, where x = -1, x = 0 ...