+12 When graphing x=-2, whey isn't there a slope or y intercept
also, when graphing y=3, is the slope 0, and what are 3 ordered pairs to y=3
+128475 The graph of x = 2 is a vertical line that goes through the x axis at the point (2, 0) ....the slope is undefined.....to see why......take two points on this line, say, (2, 0) and (2, 1)..............note that the slope is: [1 - 0]/[2 - 2] = 1/0 but, since we can't divide by 0, the slope is, by definition, undefined. Also, this line never intersects the y axis, so there is no y intercept.
The line y = 3 is a horizontal line that interesects the y axis at (0, 3). Since a horizontal line neither rises nor falls, its slope is 0. Three ordered pairs on this line are (0, 3) (1 ,3) and (2.3)....note that the y values are all the same.....only the x values change !!!
+128475 The graph of x = 2 is a vertical line that goes through the x axis at the point (2, 0) ....the slope is undefined.....to see why......take two points on this line, say, (2, 0) and (2, 1)..............note that the slope is: [1 - 0]/[2 - 2] = 1/0 but, since we can't divide by 0, the slope is, by definition, undefined. Also, this line never intersects the y axis, so there is no y intercept.
The line y = 3 is a horizontal line that interesects the y axis at (0, 3). Since a horizontal line neither rises nor falls, its slope is 0. Three ordered pairs on this line are (0, 3) (1 ,3) and (2.3)....note that the y values are all the same.....only the x values change !!!
