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Algebra 1 Vocabulary

TermDefinition
Fraction Button Alpha Y=
Graph an equation Y=
Absolute Values 2nd 0
To get an equation from a table STAT
To find the factors for the X BOX Y= # / x
To change a decimal to a fraction MATH FRAC ENTER
To bring up a table from a graph/equation 2nd Graph
To find the mean, median, range, quartiles STAT CALC 1-VAR STATS
Linear Regression equation STAT CALC LinReg (4)
Exponential Regression equation STAT CALC ExpReg (0)
Justify Show your work
Explain Use words to explain your answer
Function The x-values do NOT repeat or it passes the VLT (vertical line test)
Vertical Line Test When you draw a vertical line through a graph to determine whether it is a function visually.
Correlation Coefficient The "r" value when you are finding the Linear Regression equation. Measures the strength of the relationship between two variables.
Evaluate To find the value of an expression when the variable is replaced with a given number.
Vertex The maximum or minimum point of the graph. (quadratic or absolute value)
Quadratic equation An equation where the largest exponent is 2.
Ways to solve a Quadratic equation Quadratic formula or factoring
Linear equation An equation where the largest exponent is 1. Usually in the form y=mx+b.
Standard form An equation written from the highest exponent to the lowest exponent.
Constant The number without a variable in an expression.
Minimum or maximum value The y-value of the vertex.
Trinomial An expression with three terms, usually of the form ax^2 + bx + c
Domain The values that go into a function, input, the x-values.
Range The values that you get out of a function, output, y-values.
Slope formula Delta Y / Delta X or Y1 - Y2 / X1 - X2
Average rate of change The slope of any two points not necessarily on a line.
Axis of Symmetry An imaginary line that cuts a graph into two identical parts. Goes through the vertex of a parabola or absolute value graph.
Zeros, roots, x-intercepts Where the graph crosses the x-axis.
Transformation The result of a graph being shifted.
Y-intercept Where the graph crosses the y-axis.
Range from statistics Maximum value minus the minimum value
Median The middle number when numbers are listed from smallest to largest. Best measure if data has an outlier.
Mean The average (add all numbers and divide by the total numbers). Best measure if there is NOT an outlier.
Depreciates or Decays Values are decreasing, usually used in exponential decay functions.
System of equations A set of two or more linear equations. Solution will be the point of intersection.
Rational number A number that can be written as a ratio (fraction) of two integers (negative or positive whole numbers)
Irrational number A number that is not rational. Non-repeating and non-terminating decimals. Cannot be written as a fraction a/b. Famous examples pi, square root of 2.
Quartiles (Q1, Q3) The median of the upper and lower halves of a data set.
Intervals The range of numbers between two given numbers.
Graph of a quadratic function Parabola - U shaped graph
Graph of an absolute value function V shaped graph
Graph of a square root function Shooting star graph
Graph of a cubic function Snake graph
Exponential Equations Y=a(b)^x An equation where the variable is the exponent. Exponential growth (b is greater than 1) or decay (b is less than 1)
Slope-Intercept form Y=mx+b
Coefficient The number multiplied with the variable (in front).
Leading Coefficient The number multiplied by the variable with the largest exponent.
Degree The largest exponent in an expression.
Product Means to multiply.
Sum Means to add.
Difference Means to subtract.
Factor Completely Means you need to pull out a GCF first, then xbox or square root method.
Created by: mharper23KSH
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