Flashcards
Functions
Cards in this deck (15)
- 1What is the set of x values called in a functionThe domain of the function
- 2What is the set of y values of a function calledRange
- 3what does f(x) stand forthe function of x
- 4X stands for which variable? Y stands for which variable?X= independent variable
Y= dependent variable - 5What is the formula for the gradient of a line?m= (y2 - y1)/ (x2 - x1) with m standing for the gradient
- 6What is the general form of a linear functiony= mx + c with 'm' representing the gradient and 'c' representing the constant
- 7Definition of a linear functionWhen two variables are not of direct proportion, they don't pass through the origin (0, 0) and are straight lines.
- 8What is the form of a quadratic equation?f(x)= ax^2 + bx + c where a, b and c are real numbers and a does not equal 0
- 9What is the minimum or maximum point of a parabola called?Vertex
- 10What is the formula for the axis of symmetry and x coordinate of vertex?x=-b/2a with the same variables as f(x)= ax^2 + bx + c
- 11what is the factorized form of a quadratic function?f(x) = a(x-k)(x-l)
- 12what are the formulas to calculate the x-coordinate of the vertex or the axis of symmetry using the variables from the factorized quadratic function formula?x= (k+l)/2
- 13Equation for intersecting functions?f(x)= g(x)
- 14How to calculate horizontal asymptote?f(x)= ka^x +c, y=c is the horizontal
- 15how to calculate the y intercept of a an f(x)= ka^x + c function?y intercept= (0, k + c)
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- Flashcards on Functions, created by daniel_d_leigh on 29/12/2015.
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- daniel_d_leigh
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