Quadratic Functions Quiz

What is the formula for the axis of symmetry in a quadratic equation of the form ax^2 + bx + c?

• x = -b/2a

• x = 2a/b

• x = b/2a

• x = -2a/b

If a quadratic function has a positive 'a' value, how does the graph open?

• Upwards like a cup

• Downwards like a frown

• Vertically

• Horizontally

When plotting points for a quadratic function, how do you find the y-value for a point reflected over the axis of symmetry?

• The y-value remains the same

• The y-value is halved

• The y-value is inverted

• The y-value is doubled

In a quadratic function where the graph opens downwards, what is the nature of the vertex?

• It is a minimum point

• It is a point of inflection

• It is a maximum point

• It is undefined

What is the vertex form of a quadratic function?

• y = ax^2 + bx + c

• y = a(x-h)^2 + k

• y = ax + b

• y = a(x+k)^2 - h

In the vertex form y = a(x-h)^2 + k, what does 'h' represent?

• The slope of the parabola

• The x-coordinate of the vertex

• The y-coordinate of the vertex

• The axis of symmetry

How does the vertex form of a quadratic function simplify finding the vertex?

• The vertex is found by solving for y

• The vertex is found by solving for x

• The vertex is directly given by (h, k)

• The vertex is not in the formula

If a quadratic function in vertex form has a positive 'a' value, what is the nature of the vertex?

• It is a maximum point

• It is a minimum point

• It is a point of inflection

• It is undefined

In the vertex form y = a(x-h)^2 + k, what does 'k' represent?

• The slope of the parabola

• The axis of symmetry

• The x-coordinate of the vertex

• The y-coordinate of the vertex

How do you determine the axis of symmetry in the vertex form of a quadratic function?

• It is x = h

• It is y = k

• It is x = -h

• It is y = -k