What does $m$m represent in the equation of a line $y=mx+c$y=mx+c?
$x$x-intercept
$y$y-intercept
Slope
Identify, through investigation, y = mx + b as a common form for the equation of a straight line, and identify the special cases x = a, y = b;
Identify, through investigation with technology, the geometric significance of m and b in the equation y=mx + b