If a quadratic is factorable, it is easy to find the zeros (i.e. x-intercepts) of the function.
Example 1: Find the x-intercepts of 


After factoring the trinomial, equate each factor to zero and solve for x.











In other cases, you will find that the quadratic is not factorable in its
form. When you have a situation like this, it is best to complete the square and then solve for x. It may also be in the
form, in which you would just substitute y for 0.
form. When you have a situation like this, it is best to complete the square and then solve for x. It may also be in the
form, in which you would just substitute y for 0.Example 2: Find the zeros of 




We did a few more examples after that and that was our whole lesson today. Hope this provided enough information for you!
Our homework consists of:
- Quadratic Functions Assignment 2
- Transformations of Quadratic Functions 1
- Exercise 4, Questions 1,2,9 and 10
Have a great long weekend everyone!


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