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Alg 1 STAAR Vocab 1

STAAR Practice for Algebra 1 Vocabulary-Set 1

Function Every x has exactly 1 y value (x's don't repeat)
Independent Variable The variable that does not depend on something else, it can stand alone. (Words that represent the x values)
Dependent Variable Variable that depends on something else. (represents the y values)
Equations A math sentence stating 2 expressions are equal. (Does have an = sign)
Inequality A statement that uses the symbols <, >, <=, >=
Parent Function Linear and Quadratic Linear is y = x Quadratic is y = x^2
Domain the of x values
Range the y values
Correlation A relationship between two sets of data (Positive, Negative, No Correlation)
Variable A letter or symbol that represents an unknown number
y-intercept Where a graphed line or curve crosses the y axis
x-intercept Where a graphed line or curve crosses the x axis
Parallel Lines Two lines that never cross. (Have the same slope)
Slope The rate of change. (The steepness of a line)
Direct Variation Linear function in the form of y=kx. (It is proportional)
Base The number or symbol being multiplied (has an exponent)
Exponent A small superscript number that shows how many times a base is to be multiplied.
Zeros/Roots The x-intercept. (Zeroes are written (#, 0) and roots are written as x=#)
Minimum The bottom point where the graph changes directions. (the vertex of the quadratic with a positive value of a)
Maximum The high point where the graph changes directions. (the vertex of the quadratic with a negative value of a)
Line of Symmetry A line that makes the graph the same on both sides.
Created by: morrisda