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Combining like terms with negative coefficients
By Khan Academy
This example of combining like terms in an expression get a little hairy. Listen closely.
Graphing Quadratic Equations
By Marc Whitaker
Instructor uses a white board to model graphing quadratic equations. Examples show using quadratic equations in standard form to determine the line of symmetry, create a table of values, and graph the quadratic equation by using these values.
Graphing Quadratic Functions - Example 1
By PatrickJMT
Watch this video to learn how to graph a quadratic function of the form ax2 +bx + c, where a, b, and c are constants (and a≠0). All functions of this form describe the graph of a parabola (u-shape) that either opens upward or downward. To graph a quadratic function: Consider the leading coefficient (the value of a) to determine if the parabola opens upward (postive a) or downward (negative a) Calculate the vertex of the parabola from a and b. The vertex is the highest or lowest point of the parabola. Find the x-intercept(s) (zeros) Find the y-intercept. (Found by plugging x=0 into the function).
13 - Add and Multiply Imaginary Numbers - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
16 - Conjugate Root Theorem, Part 1 (Roots of Polynomials, Solving Polynomials & Conjugate Roots)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
05 - Graphing Parabolas - Opening Up and Down (Quadratic Equations)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
11 - Simplify Expressions with Imaginary Numbers - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
