Week 8 – Properties of Quadratic Formula

This week, I learned how to use the table of values in a quadratic formula to find the vertex, x-intercepts, y- intercepts, range, domain, line of symmetry, whether if its maximum or minimum and direction of parabola.

A formulas we could use are y=a(x-p)^2+q and y=(x+b)(x+c)

The vertex of the quadratic is at (p, q) and for the second formula, we know that x can be -b or -c. We could find a by plugging the points.

This method helps us to draw the graph easily.

Week 7- Discriminant

This week, I’ve learned how to find discriminants. To find discriminant, you take the b^2 – 4ac from the quadratic formula. The discriminant shows how many roots the quadratic equation is going to have. If its positive, it will have 2 roots, if its 0, it will have 1 root, and if its negative, there are no roots.

Using this method, its going to save more time finding which equation works.