Understanding Quadratic Functions

What is the general form of a quadratic function?

• a x + b

• a x-cubed + bx + c

• a x-squared + b

• a x-squared + bx + c

Why can't the constant 'a' be zero in a quadratic function?

• It would make the function cubic

• It would make the function undefined

• It would make the function linear

• It would make the function constant

What shape does the graph of a quadratic function take?

• Hyperbola

• Parabola

• Ellipse

• Circle

What is the term for the point where a parabola changes direction?

• Center

• Axis

• Vertex

• Focus

What determines whether a parabola opens upwards or downwards?

• The value of 'b'

• The value of 'a'

• The value of 'c'

• The value of 'x'

What is the degree of a quadratic polynomial?

• First-degree

• Fourth-degree

• Third-degree

• Second-degree

What is a polynomial with one term called?

• Binomial

• Quadrinomial

• Trinomial

• Monomial

How are the coefficients typically represented in polynomials with many terms?

• As letters with numerical subscripts

• As numbers

• As different letters

• As symbols

What is a polynomial with two terms called?

• Trinomial

• Binomial

• Monomial

• Quadrinomial

What method will be used in the next lecture to create quadratic expressions?

• FOIL method

• Factorization

• Completing the square

• Graphing