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Coeffiecient-1
DEFINITION: a numerical or constant quantity placed before and multiplying the variable in an algebraic expression HOW TO Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient. Sometimes a letter stands in for the number. Example: In ax2 + bx + c, "x" is a variable, and "a" and "b" are coefficients. Everyday Use: Null
Quadratic Formula-1
Quadratic Equations and Inequalities Definition: The "Standard Form" of a Quadratic Equation is: ax2 + bx + c = 0 x represents an unknown, and “a”, “b”, and “c” represent known numbers such that “a” is not equal to 0. A Quadratic Inequality is just like a quadratic equation, except instead of an equal sign there's an inequality. ax2 + bx + c < 0 Everyday Use: Figuring Out a Profit Finding a Speed Calculating Areas of a Structure How to Solve Quadratic Equations: You are able to solve Quadratic equations in these ways: By Factoring And Quadratic Formula Factoring: x2 + 5x + 6 x2 + 5x + 6 = (x+2)(x+3) Now set the factors equal to 0. (x+2)(x+3) = 0 Solve each factor. x + 2 = 0 or x + 3 = 0 ? x = –2 or x = – 3 So x = -3, -2 Quadratic Formula: The Quadratic Formula is: x = -b ±√b² - 4ac 2a