Arguably, the whole purpose behind learning how to factor quadratics and find its roots (also known as *zeros*) is to know how to sketch parabolas accurately. As you have come realize, many quadratic relations of the form y = ax² + bx + c can be factored to find the x-intercepts.

The first and second video will show examples on how to fully factor a quadratic into factored form and analyze key features. We’ll analyze the **direction of opening**, **y-intercept**, **x-intercept(s)**, and equation of its **axis of symmetry**.

- If you still need more practice, watch Question 2 here.

The last video does more of the same, except the analysis part is skipped.

- If you still need more practice, watch Question 2 here.