Chapter 3 Flashcards
An equation whose graph forms a straight line
Linear equation
A linear function defined by an equation of the form
Direct variation
Two lines are parallel if they lie in the same plane and do not intersect
Parallel lines
Lines that intersect and form right angles
Perpendicular lines
A linear equation of a non vertical line written as
y- y1= m(x- x1)
Point-slope form
The relationship between two quantities that are changing AKA slope
Rate of change
The ratio of the vertical change to the horizontal change
Slope
The slope intercept form of a linear equation is
y=mx+b
Slope-intercept form
The standard form of a linear equation is Ax+By=C
Standard form
The x coordinate of a point where a graph crosses the x axis
X-intercept
The y coordinate of a point where a graph crosses the y axis
Y-intercept
