Help with "Whiteboard" Graphics

We are looking to present two separate images. The second would be an “extension” of the first. The images would be used in power point presentations, email newsletters, and whitepaper. Ideally, some kind of image file would be the output - jpeg, bmp,... Both would be simple line graphs. We would like it to be drawn to mirror that used in Whiteboard animation videos. Just a black line. The first would be titled - "Physical Decline Over Time" We would like to present an x axis labelled as Years. We would plot 10 data points, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100. We would like to present a y axis labelled as % Capabilities. We would plot 4 data points, 25%, 50%, 75%, and 100%. We would then be drawing a line on the graph. The line would start at X = 0 and y = 0. The line would move up X = 10 and y = 50, then to x = 20 and y = 100, then tapering off to x = 30, y = 90, x = 40, y =80, x = 50, y = 70, x = 60, y = 60, x = 70, y = 50, then dropping steeply to x =80, y = 0. We then would like a second image starting with the first image as the base. The second image would be titled "Hold the Line". We then would plot a dotted line from x = 20, y = 100, holding at y = 100 to x = 60, then slowly dropping to x = 70, y = 85, x = 80, y = 75, x = 90, y = 65, x = 100, y = 60. We would then like to create a second pair of images using the same line and data points. The chart titles would change as would the label on the Y Axis. X axis would stay the same.