In this lecture you will move to Solving Quadratic Equations by Graphing. First, Professor Fraser will walk you through an overview of Quadratic Equations and their Standard Form. Then, you will move into Solving by Graphing to obtain the Roots as well as Estimating Solutions.
equation has 2 real roots if its graph has 2 x-intercepts, one real
root if it has 1 x-intercept (in this case, the graph is tangent to
the x axis), and no real roots if it has no x-intercepts.
If a root is not
an integer, estimate the root by stating the two consecutive
integers it lies between.
A real number is a
zero of the quadratic function f(x) if and only if it is a root of
the equation f(x) = 0.
Solving Quadratic Equations by Graphing
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.