Quadratic Functions Anatomy (2)

ForfatterTim Brzezinski

Emne:Algebra, Funktioner, Funktionsgrafer, Andengradsfunktioner, Parabler

Interact with the app below by dragging the TWO LARGE POINTS. Then answer the questions that follow.

Suppose we graph the quadratic function . What does the parameter do to the graph? Explain.

Check all the statements that are true below for the quadratic function .

Sæt kryds ved dit svar

A
When is positive, the graph always opens down.
B
When is negative, the graph always opens down.
C
When is positive, the graph always opens down.
D
When is negative, the graph always opens down.

Tjek mine svar (3)

Check all the statements that are true below for the quadratic function .

Sæt kryds ved dit svar

A
When is positive, the graph always opens up.
B
When is negative, the graph always opens up.
C
When is positive, the graph always opens up.
D
When is negative, the graph always opens up.

Tjek mine svar (3)

The graph of any quadratic function is called a parabola. The vertex of a parabola is its turning point. Check all the statements that are true below for the quadratic function .

Sæt kryds ved dit svar

A
When is positive, the graph has a vertex above the xAxis.
B
When is negative, the graph has a vertex above the xAxis.
C
When is positive, the graph has a vertex above the xAxis.
D
When is negative, the graph has a vertex above the xAxis.

Tjek mine svar (3)

Check all the statements that are true below for the quadratic function .

Sæt kryds ved dit svar

A
When is positive, the graph has a vertex below the xAxis.
B
When is negative, the graph has a vertex below the xAxis.
C
When is positive, the graph has a vertex below the xAxis.
D
When is negative, the graph has a vertex below the xAxis.

Tjek mine svar (3)

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