Exploring Quadratic Functions Basics

What shape does the graph of a quadratic function form?

• Circle

• Triangle

• Parabola

• Straight line

What is the line called that divides the parabola into two congruent halves?

• Vertex line

• Horizontal axis

• Vertical axis

• Axis of symmetry

How do you determine if a parabola opens up or down?

• The sign of the B value

• The sign of the C value

• The sign of the A value

• The value of the vertex

What is the standard form of a quadratic equation?

• ax^2 + bx + c

• x^2 + y^2 = r^2

• ax + by = c

• a(x - h)^2 + k

What does the vertex form of a quadratic equation look like?

• ax + by = c

• ax^2 + bx + c

• x^2 + y^2 = r^2

• a(x - h)^2 + k

What is the formula to find the axis of symmetry?

• x = a/b

• x = -c/a

• x = b/2a

• x = -b/2a

If there is no B value in the equation, what is the axis of symmetry?

• x = 0

• x = 1

• x = -1

• x = c

How do you find the vertex of a quadratic function?

• Multiply a and b

• Plug in the value of x into the equation

• Divide b by 2a

• Add a and c