Unit 4B Final Exam Review

Front

What is the height of the platform at Top Golf if the height of the golf ball is represented by the equation s(t) = –16t^2 + 64t + 80?

Back

80 feet

Front

What is the first step in solving quadratic equations?

Back

Write the equation in standard form.

Front

Can the quadratic formula be used to solve quadratic equations that cannot be factored?

Back

True

Front

What are the x-intercepts of the equation if they are given as x=0 and x=4?

Back

x=0 and x=4

Front

What does the algebraic expression (w+6)(w+4) represent if the entire garden is surrounded by a 2 foot wide cement walkway?

Back

The total area of the garden and walkway.

Front

What is the standard form of a quadratic equation?

Back

The standard form is ax^2 + bx + c = 0.

Front

What does the vertex of a parabola represent in a quadratic function?

Back

The vertex represents the maximum or minimum point of the parabola.

Front

How do you find the axis of symmetry for a quadratic equation in standard form?

Back

The axis of symmetry can be found using the formula x = -b/(2a).

Front

What is the quadratic formula used for?

Back

The quadratic formula is used to find the solutions (roots) of a quadratic equation.

Front

What is the discriminant in a quadratic equation and what does it indicate?

Back

The discriminant is b^2 - 4ac; it indicates the nature of the roots (real and distinct, real and equal, or complex).