Understanding Quadratic Functions

What is the standard form of a quadratic function?

• ax² + bx + c

• ax + b

• ax² + bx

• ax² + c

What happens to the parabola of a quadratic function if the 'a' value is negative?

• It opens downwards

• It opens upwards

• It becomes a straight line

• It becomes a circle

What is the vertex of a parabola?

• The highest or lowest point of the parabola

• The point where the parabola intersects the x-axis

• The point where the parabola intersects the y-axis

• The midpoint of the parabola

What is the purpose of factoring quadratic expressions?

• To find the roots or solutions of the quadratic equation

• To simplify the expression for easier graphing

• To change the equation into a linear form

• To eliminate the constant term

Which of the following is a factored form of the quadratic expression x² + 5x + 6?

• (x + 2)(x + 3)

• (x + 1)(x + 6)

• (x + 2)(x + 4)

• (x + 3)(x + 4)