Coefficient – the number multiplied by the variable in an equation, the number in front of the variable
Coinciding lines – lines which are exactly the same line and fit on top of each other, the solution is a false statement without variables
Consistent system – a system of linear equations that has at least one solution
Correlation – relationship of the points
Dependent system – a system of linear equations that has infinitely many solutionsDependent Variable – The output variable of a relationship.
Equation –a number or algebraic expression equal to another number or algebraic expression
Exponential decay – a situation in which as the independent variable increases the dependent variable decreases exponentially, exponential decay is the half-life of a radioactive element
Exponential growth – a situation in which as the independent variable increases the dependent variable increases exponentially, exponential growth is the amount in a savings account offering compound interest
Function – a relation where each element of the domain corresponds to exactly one element of the range
Function Notation – A way of naming a function with a letter and the input in parenthesis after the function name. For example, f(x) = x + 1 represents the function named f, with the independent variable, x.
Inconsistent system – a system of linear equations that has no solution
Independent Variable – The input variable of a relationship.
Intersecting lines – lines which cross at one point, the solution gives one of the variable solutions that is plugged in to one equation to find the other variable
Lateral faces – all the sides except the base(s)
Laws of Exponents - The Laws of Exponents are the 7 basic laws that can be used to simplify algebraic and numerical expressions. These are the Product Law, Quotient Law, Power of a Power Law, Power of a Product Law, Power of a Quotient Law, Zero Exponent Law and Negative Exponent Law
Line of best fit – a straight line that best represents the data on a scatter plot
Linear function - A function with a constant rate of change. In a linear function the x values change by a constant amount and the y values change by a constant amount.
Nonlinear Function - a function without a constant rate of change.
Outliers – data points on a scatter plot which lies outside the overall pattern of the trend line
Parabola – a u-shaped curve with specific properties: for a given point (the focus) and a given line through the focus (the directrix) a parabola is the locus of points equidistant from the focus and directrix
Parallel lines – lines which never cross, the solution is a true statement without variables
Quadratic equation – an equation with a degree of 2, the highest exponent is 2
Quantity – an amount
Rate – a comparison of two quantities with different units of measure
Rate of Change – the difference in output values divided by the difference in input values
Relation – a relationship between two variables
Scatter plot: – a graphic display of data as a set of points representing the relationship between two variablesSlope - the difference in output values divided by the difference in input values.
Slope-Intercept Form – y = mx + b form of a linear equation, where m is the slope and b is the y-intercept
Substitute – replace a variable with a number or equation
System of linear equations – a set of 2 or more linear equations with 2 or more variables that must be solved simultaneously
Trend – tendency or movement