Area
The total amount of space a two-dimensional shape takes up.
Axis of Symmetry
The vertical line that divides a parabola into two symmetric parts.
No Solution (Quadratics)
When there is no value that satisfies a given equation.
Non-linear Function
Any function that does not make a straight line.
One Solution (Quadratics)
When there is exactly one value that satisfies an equation.
Binomial
An expression containing two terms.
Coefficient
The number in front of the variable.
Constant of Variation
The number that relates two variables that are directly or inversely proportional.
Origin
Where the x and y-axes meet. (0,0)
Parabola
The U shaped graph of a quadratic function.
Parallel
Two lines that never intersect. They have the same slope.
Continuous Data
Data that consists of all numbers on an interval.
Perimeter
The sum of the lengths of all the sides of a polygon.
Perpendicular
Two lines that intersect to form 90 degree angles. They have opposite reciprocal slopes.
Point-Slope Form
Polynomial
An expression that contains several terms including coefficients, variables, and exponents.
Dependent Variable
The variable that represents the output of a function. Usually the y-variable.
Positive Correlation
A relationship between two variables such that as one increases, so does the other.
Product
When two numbers are multiplied together.
Quadratic Equation
An equation whose highest power is a 2.
Direct Variation
An equation of the form y = kx. Passes through the origin and is a straight line.
Discrete Data
A data set that consists of only certain numbers in an interval.
Distributive Property
Allows you to multiply an expression by multiply each term individually and then adding the products.
Domain
The set of all possible input values of a function. The x-values.
Quadratic Function
A non-linear function whose highest power is a 2. makes a parabola when graphed.
Quadratic Parent Function
The most basic quadratic function. y = x^2
Quotient
When two numbers are divided.
Range
The set of all possible output values for a function.
Exponent
When a number is raised to a power (multiplied by itself).
Exponential Decay
When a value decreases by a constant multiple.
Exponential Growth
When a value increases by a constant multiple.
Exponential Function
Rate of Change
Another way to say slope
Reciprocal
One divided by the number. Flip the fraction.
Roots
The solutions, zeros or x-intercepts of a quadratic function.
Factor
When you break an expression down into smaller expressions multiplied together.
Function
An expression or equation for which every input has exactly one output. No repeating x's. Passes the vertical line test.
Simplify
To use the rules of arithmetic and algebra to rewrite an expression.
Function Notation
Independent Variable
The variable that represents the input of a function. Usually the x-variable.
Inequality
The relation between two expressions that are not equal.
Slope
The rate of change between any two points on a line.
Slope intercept form
Solution
A value that satisfies an equation. For a quadratic it is also called a root, zero, x-intercept.
Solve
To isolate a variable and/or identify a value that satisfies an equation.
Intersection
The point where two lines cross.
Intercept
The place where a graph crosses the x or y-axis.
Standard Form
Ax + By = C
y = ax^2 + bx + c
System of Equations
Two or more lines. The solution to a system is where these two lines intersect.
Term
One piece of an expression. No addition or subtraction.
Inverse Variation
An equation of the form y = k/x
Like Terms
Terms whose variables and exponents are the same.
Linear Function
A function whose graph is a line.
Translate
To move a function left, right, up or down.
Trinomial
An expression containing three terms.
Line of Best Fit
A line that best models a set of data.
Linear Parent Function
y = x
Maximum
The highest point of a graph.
Minimum
The lowest point of a graph.
Monomial
An expression with only one term.
Variable
A letter that represents a number of unknown value.
Vertex
The highest or lowest point on a parabola.
x-axis
The horizontal axis.
Negative Correlation
A relationship between two variables such that as one value increases the other decreases.
No Correlation
When two variables do not have a relationship.
x-intercept
Where a graph crosses the x-axis. (x, 0)
y-axis
The vertical axis.
y-intercept
Where a graph crosses the y-axis. (0, y)
Zeros
The solutions, roots, or x-intercepts of a quadratic function.