The first graph shows a linear increase after every step and with each step representing the brightness of our light source. We measured the brightness using our phone with an app installed to measure the brightness in lux.

The second graph shows the resistance output from our LDR sensor as we increase the light intensity. The higher the light intensity, the lower the resistance. The graph shows a inversely proportional graph.

The third graph shows the theoretical distance and its relative error when we measured it with our sensor. Our results are considered accurate as the error falls under 10% which is acceptable for us.