When we are faced with a quadratic that is not “nice” to factor we need to find a way to factor it. This is where the quadratic formula comes in. The discriminant is a value that can be calculated for each quadratic equation. Depending on the value of the discriminant, we can determine if the quadratic equation has a solution, or has factors, or not.
You may also like
Practice arithmetic operations with fractions.
Practice using the remainder theorem with Raise My Marks math tutoring and exercises, Ottawa, Toronto, Canada, IB math, AP Calculus, university.
What are first differences? When given a function or a table of values representing a function, looking at the first difference can help you determine what kind of relationships there is between the variables and hence what function the points represent.
Sometimes we need to change the form of a quadratic depending on what the situation is. One way of taking a general quadratic and rewriting it in vector form, is to “complete the square”. Learn about what this means and work through some examples to further your understanding.