# Graph of quadratic functions

You can change the values of

**a**,**b**and**c**by moving the dots on the scroll bar. Explore the changes of the graph when you change the values of**a**,**b**and**c**! Try to answer the following questions: Q.1 When the values of**c**changes while**a**and**b**keeps unchanged, describe the change of the graph. Q.2 When the values of**a**changes while**b**and**c**keeps unchanged, describe the change of the graph. Q.3 When the values of**b**changes while**a**and**c**keeps unchanged, describe the change of the graph.## New Resources

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