Algebra I: Getting started - Graphs of quadratic functions
This is a free lesson from our course in Algebra I
 
   
In this section, you'll be looking at graphs of the quadratic functions. Standard Form of a Quadratic Function is: f(x)= a(x-h)2 +k, The graph of the quadratic function is called a parabola and is typically a curved shape. What does 'a' tell us? When you have a quadratic function in either form, f(x)= ax2 +bx+c or f(x)= a(x-h)2 +k,
   if a > 0, then the parabola opens up.
   if a < 0, then the parabola opens down.
You'll notice in the graphs in this lesson that one of the main points of a parabola is the vertex, which is the highest or the lowest point on the graph i.e. it is the maximum or the minimum point of a quadratic function.
<h2> Getting started - Graphs of quadratic functions - Watch video (Algebra I)</h2> <p> quadratic, video, graph, functions, parabola, polynomial of second degree, quadratic equations, practice questions, quizzes, solution</p> <p> The graph of the quadratic function is called a parabola and is typically a curved shape.</p>
Other useful lessons:
A comparison of graphical solution and factoring derived solution
Determine number of solutions of a quadratic from its equation
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