Choose some interval of time (like 6 months), and take a screenshot of your favorite stocks price during that interval of time.

Pick a lowest and highest point during that interval. Try to choose an interval where the graph is smooth.

Write the lowest and highest points you have chosen as ordered pairs.

Draw a tangent line at the lowest and highest point and upload the picture.

Find the equation of the tangent line through the lowest point.

*Please be specific.