What does the line y = 3x - 7 look like?
y = 3x - 7
straight line with slope of 3 and y-intercept of -7
http://www.wolframalpha.com/input/?i=y+%3D+3x+-+7
straight line with slope of 3 and y-intercept of -7
http://www.wolframalpha.com/input/?i=y+%3D+3x+-+7