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R Words Continued
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p words
100
A visual way to display the shape of a distribution that shows groups of data arranged by place value; a way to show the frequency with which certain classes of data occur. The stem consists of a column of the larger place value(s); these numbers are not repeated. The leaves consist of the smallest place value (usually the ones place) of every piece of data; these numbers are arranged in numerical order in the row of the appropriate stem
What is stem and leaf plot
100
The set of all possible values for the output (dependent variable) of a function or relation; the set of second numbers in the ordered pairs of a function or relation; the values of the y-coordinates in (x, y).
What is Range (of a Relation or Function)
100
A comparison of two numbers, quantities or expressions by division. It is often written as a fraction, but not always (e.g., 2 3 , 2:3, 2 to 3, 2 ÷ 3 are all the same ratios).
What is ratio
100
The solutions or roots of a quadratic equation in the form ax2 + bx + c = 0, where a ≠ 0,
What is Quadratic Formula
100
A set of numbers arranged in order (or in a sequence). The numbers and their arrangement are determined by a rule, including repetition and growth/decay rules.
What is pattern or sequence
200
An equation of a straight line written in the form Ax + By = C, where A, B, and C are real numbers and where A and B are not both zero. It includes variables on one side of the equation and a constant on the other side.
What is Standard Form (of a Linear Equation)
200
In statistics, a measure of dispersion that is the difference between the greatest value (maximum value) and the least value (minimum value) in a set of data.
Range of Data
200
An expression that can be written as a polynomial divided by a polynomial, defined only when the latter is not equal to zero.
What is Rational Expression
200
A function that can be expressed in the form f(x) = ax2 + bx + c, where a ≠ 0 and the highest power of the variable is 2. The graph is a parabola.
What is Quadratic Function
200
A number whose square root is a whole number (e.g., 25 is a perfect square since 25 = 5). A perfect square can be found by raising a whole number to the second power (e.g., 52 = 25).
What is perfect square
300
One of two equal factors of a number or expression; a radical expression ( a ) with an understood degree of 2.
What is Square Root
300
A ratio that compares two quantities having different units (e.g., 168 miles 3.5 hours or 122.5 calories 5 cups)
What is rate
300
Any number that can be written in the form a b where a is any integer and b is any integer except zero.
What is Rational Number
300
One of three values that divides a set of data into four equal parts: 1. Median divides a set of data into two equal parts. 2. Lower quartile (25th percentile) is the median of the lower half of the data. 3. Upper quartile (75th percentile) is the median of the upper half of the data.
What is Quartile
300
An ordered arrangement of objects from a given set in which the order of the objects is significant (e.g., two-letter permutations of the three letters X, Y, and Z would be XY, YX, XZ, ZX, YZ, and ZY). A permutation is similar to, but not the same as, a combination.
What is Permutation
400
The replacement of a term or variable in an expression or equation by another that has the same value in order to simplify or evaluate the expression or equation.
What is substitution
400
The amount a quantity changes over time (e.g., 3.2 cm per year). Also the amount a function’s output changes (increases or decreases) for each unit of change in the input. See slope.
What is rate of change
400
The combined set of rational and irrational numbers. All numbers on the number line. Not an imajinary number.
What is real number
400
An equation that can be written in the standard form ax2 + bx + c = 0, where a, b, and c are real numbers and a does not equal zero. The highest power of the variable is 2. It has, at most, two solutions. The graph is a parabola.
What is Quadratic Equation
400
An equation of a straight, non-vertical line written in the form y – y1 = m(x – x1), where m is the slope of the line and (x1, y1) is a given point on the line.
What is Point-Slope Form (of a Linear Equation)
500
A set of two or more linear equations with the same variables. The solution to a system of linear equations may be found by linear combination, substitution, or graphing. A system of two linear equations will either have one solution, infinitely many solutions, or no solutions.
What is System of Linear Equations
500
The percent by which a monetary account accrues interest. It is most common for the rate of interest to be measured on an annual basis (e.g., 4.5% per year), even if the interest is compounded periodically (i.e., more frequently than once per year).
What is rate of interest.
500
The line or curve of best fit that represents the least deviation from the points in a scatter plot of data. Most commonly it is linear and uses a “least squares” method.
What is regession curve
500
The four regions of a coordinate plane that are separated by the x-axis and the y-axis, as shown below.
What is Quadrants
500
An algebraic expression that is a monomial or the sum or difference of two or more monomials (e.g., 6a or 5a2 + 3a – 13 where the exponents are natural numbers).
What is Polynomial
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