Learn the properties of similar triangles. Practice using the properties of similar triangles to identify pairs of similar triangles.
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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.
Another form of interpreting the linear relation is with the parametric equation of a line. In this form we have an unknown or parameter value. Depending on how many parameters there are we determine the type of “plane” we have. In our case here we will see one parameter indicating that we have a line.
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.
Practice graphing stretches of quadratics with raise my marks math tutoring and exercises, Ottawa, Toronto. IB math and provincial curriculum.