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# math unit test 456

### bla bla bla vocab

a system of equations or inequalities that has at least 1 solution. consistent system
a system of equations or inequalities that has infinitely many solutions. dependent system
a system of inequalities or equations that has no solution inconsistent system
a system of inequalities that has exactly 1 solution. independent system
a system of equations in which all of the equations are linear. system of linear equations
1. graphing- 2. substitution method 3. elimination method 3 ways to solve linear equations
an inequality that can be written as ax<b, ax>b, ax<_b, ax>_b linear inequality
a linear relationship between 2 variables, x&y, that can be written in the form y=kx. direct variation
a ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable. rate of change
a function that can be written in the form y=mx+b. linear function
a transformation that reflects a graph across a line called the line of reflection. reflection
a transformation that rotates or turns a figure about a point called the center of rotation rotation
a change in the position, size, or shape of a figure or graph. transformation
a transformation that shifts or slides every point of a figure or graph the same difference in the same direction. translation
the x-coordinates of the points where a graph intersects the x-axis. X- intercept
a list of numbers that often form a pattern. sequence
a sequence whose successive terms differ by the same non0 number d, called the common difference. arithmetic sequence
a graph made up of unconnected points. discrete graph
a relation in which every domain value is paired with exactly 1 range value. function
a graph with points plotted to show a possible relationship between 2 sets of data. scatter plot
2 data sets have this if 1 set of data values increases as the other set decreases. negative correlation
something used to determine whether a relation is a function. vertical line test p. 247
Created by: ice1