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HSA ALGEBRA VOCAB
Vocab words used in Algebra HSA questions
Question | Answer |
---|---|
a mathematical statement that shows two expressions are equal | Equation |
a geometric figure that goes straight through a set of points | Line |
an algebraic statement that contains a constant value and a rate that forms a line | Linear Equation |
a letter that is used to represent an unknown quantity | Variable |
a line that has all the same x-coordinates, goes up and down | Vertical Line |
a mathematical statement that shows two expressions are less than or greater than | Inequality |
a set of two or more equations that each contains variables | System of equations |
two lines that never cross or overlap | Parallel |
two lines that intersect at a ninety degree angle | Perpendicular |
an equation that is used to determine the solution to real-world situation by plugging in values for a rule | Formula |
a mathematical object that is an array of numbers that can be used to describe a real-world situation. | Matrix |
things that are arranged by a rule can be with addition, subtraction, multiplication, division, pictures, or expressions | Pattern |
for each x there is only one y value (vertical line test) | Function |
a pattern that has a constant rate of change | Linear (y = mx + b) |
“x-squared” or “x to the second power” increases by odds 1, 4, 9, 16, 25, … | Quadratic |
“x to the third power” 1, 8, 27, 64, 125, … | Cubic |
a way to organize data to see the relationship between x and y | Table |
a visual way to organize data to see the relationship between x and y | Graph |
a mathematical statement that contains variables, addition, subtraction, multiplication, or division | Expression |
the highest point on a graph | Maximum |
the lowest point on a graph | Minimum |
where the graph crosses the x-axis also known as roots | Zeros |
where the graph crosses the y-axis | y-intercept |
the unit at which the y changes for one unit of x as known as slope | Rate of Change |
the set of x values for a graph | Domain |
the set of y values for a graph | Range |
the state of graph where there are no breaks or holes | Continuity |
a way to pair an x-value with its y-value to plot on a graph | Coordinates |
To use given information to forecast an outcome | Prediction |
A way to make a prediction where two ratios are used to solve for an unknown. | Proportion |
A way to make a prediction where an event is set up using random numbers to match the given probability | Simulation |
A way to make a prediction when there seems to be a linear trend by plugging numbers into an equation | Line of Best Fit |
A branch of mathematics that deals with collecting, organizing and analyzing data. | Statistics |
A type of sampling that ensures everyone in equally likely to be chosen and independently chosen | Simple Random Sample |
A type of sample that requires all groups of interest are included. | Representative |
Mean, median, and mode for a set of data | Measures of Central Tendency |
The average of a set of numbers/data. | Mean |
The middle number of a set of ordered numbers/data. | Median |
The number(s) that occur the most often is a set of numbers/data. | Mode |
A way to describe how much a set of data changes from on another using the range, quartiles, and interquartile range. | Measures of Variablty |
The highest number minus the lowest number used to describe the spread of the data. | Range (Stats) |
The upper quartile minus the lower quartile used to describe the spread of the middle 50% of the data. | Interquartile Range |
The numbers that show where each section of 25% end in a set of data | Quartiles |