intro 2 50 300 Are you ready to graph some special case lines? reminder Ax + By = C is called standard form. attention rectangle 300 x must be 3, but y can be any value! attention rectangle Tip: Think of x = 3 as x IS ALWAYS 3. You know this! y = -4 means y IS ALWAYS what number? -4 attention rectangle Are you plotting these on your study guide? She is going to fill in the x column with what number? 0 reminder You already know that all points on the y-axis have an x-value of 0. prompt 460 10 Pause the video. Make a table, then plot! 70 280 reminder You should now know this well: Vertical and horizontal lines have equations x=C and y=C, respectively.