How would you shade on a grid x200 y250?

Answer 1

Something is missing in your question. There probably should be a '<' or a>' after the x and after the y.

For example, How do you make a graph of {(x>=200) and (y<250)}?

Think about x = 200. It's a vertical line crossing the x-axis at 200. The points with x-values greater than 200 are to the right of this line. Draw the vertical line, and lightly shade the area to the right of the line.

Now think about y = 250. It's a horizontal line crossing the y-axis at 250. The points with y-values less than 250 are below this line. Now take a colored pencil or pen. Since there is no '=' in this inequality, there are no points ON the line. Show this by drawing y = 250 as a dashed (broken) line. Now lightly shade the area below the line.

For the finishing touch, take a new color and use it to shade over the area which has already been shaded twice (it will be on the lower right). Go over the lines on the edge of this area with this new color (keeping the dashed line dashed). At the side (with the same color), write "solution" and draw an arrow pointing to the area you shaded.

Obviously, you can't make each square equal to 1 unit on this graph. If each square counts for 25, that should be about right.