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# Unit 3 Algebra

### EUS 3: Using Patterns to Identify Relationships

intercepts where the parabola crosses the x-axis; where a line crosses the x- and/or y-axis
line of best fit a line that most accurately represents a set of data and is used to determine whether there is a relationship or trend between paired data
linear function Data sets that have a constant rate of change and forms a line, have x as the input variable where x is raised only to the first power, and graphs that are straight lines
linear inequality an inequlaity that is the result of replacing the = sign in a linear equation with <, ≤, >, or ≥; when graphed the solutions are in the shaded part of the graph
point-slope form equations written as y-y1=m(x-x1)
scatterplot compares two sets of data to see relationships
slope the steepness of a line and is defined as rise over run or (y1-y2)/(x1 - x2)
slope-intercept form y = mx + b, where m= slope b = y intercept and (x , y) shows the coordinate of a point on the line
standard form ax + by = c where a, b and c are integers
rate of change tells how fast one variable changes compared with the other
y-intercept where the line or parabola crosses the y-axis
x-intercept where the line or parabola crosses the x-axis
Created by: 1507840729