SETTING THE SCENE

We now have two ways to work with quadratic equations and their graphs.

1. If a quadratic graph has vertex \(x=2\), \(y=3\) say, then we know the equation is of the form

\(y=a\left(x-2\right)^2+3\)

for some steepness factor \(a\).

2. Identifying two interesting values \(x\) that represent symmetric points in an equation of the form

\(y=a\left(x-4\right)\left(x-12\right)+7\)

say, allows us to identify the line of symmetry of the graph and readily sketch its graph.

Let’s practice these ideas some more.

READ MORE HERE: QUADRATICS PD Essay 6.3

(See too Edfinity.com/XXX for a robust source of curriculum practice problems for you collate, organise, and use.)

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