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Chapter 3

Linear Functions

What is the slope-intercept form of an queation for a line? The slope-intercept form of an equation for a line is y=mx+b.
What is a linear function? A linear function is a function with an equation of the form y=mx+b.
What is true of two lines that have the same slope? If two lines that have the same slope, then they are parallel.
What is true of two non-vertical lines that are parallel? If two non-vertical lines are parallel, then they have the same slope.
What is the x-intercept? The x-intercept is the value of x at the point where a graph crosses the x-axis. This point has second coordinate 0.
What is the standard form of an equation for a line? When A and B are not both zero, the queation Ax + By=C is called the standard form of an equation for a line.
What is a point-slope equation for a line? The equation y-y sub 1= m(x-x sub 1).
Created by: Southlawn