View source for Quadratic Equation solution activity1

=== Objectives ===
Being able to identify the roots of the quadratic equations graphically.

=== Estimated Time ===
30 minutes

===Prerequisites/Instructions, prior preparations, if any ===
Knowledge about equations, linear equations, meaning of quadratic equations

=== Materials/ Resources needed ===
Click here to [[:File:Quadratic Equation.ggb|open]] the file

=== Process (How to do the activity) ===
{{Geogebra|gpxgugb9}}'''Procedure:'''

The general form of quadratic equation is ax²+bx+c=0,where a, b, c are known values, x is variable and a≠0.This equations can also occur in different forms such as ax²+bx=0, ax²+c=0 and ax²=0.
# Open the Geogebra file
## Start with values of b=0, c=0
## Change value of a to 1 (keeping b=0, c=0 and see what happens)
## Change value of c to 1, 2, 3 etc  (keeping a=1, b=0 and see what happens)
## Change value of b to 1, 2, 3 etc  (keeping a=1, c=0 and see what happens)
# In each of the above cases, discuss with students the meaning of the curve plotted and how the curve changes on change in values.
# Identify and note down the roots of the given set of values for a, b, c in quadratic equations.

=== Evaluation at the end of the activity ===
In quadratic equations why is a≠0? What happens to the quadratic equation, if a=0?

Go back to the page - [[Quadratic Equations#Activities 4|click here]]

[[Category:Quadratic Equations]]