Section 2.3

in order to graph the line whose equation is y=2/3 +3, begin by plotting the point _____. from this point, we move _____ units up (the rise) and _____ units to the right (the run).

(0,3) ; 2 ; 5

the equation Ax+By+C = 0, where A and B are not both zero, is called the _______ form of the equation of a line.

general

the graph of the equation y=3 is a/an

horizontal line

if a line falls from left to right, the slope is

negative

if a line rises from left to right the slope is

positive

the slope of a vertical line is

undifined

the graph of the equation x=-2 is a/an

vertical line

the point slope form of the equation of a non vertical line with slope m that passes through the point (x1,y1) is

y-y1=m(x-x1)

the slope intercept form of the equation of a line is _______, where m represents the ______ and b represents the ________.

y=mx+b ; slope ; y-intercept

the slope of a horizontal line is

zero