By definition the control in a science experiment is a sample that remains the same throughout the experiment. The control must remain the same or equal at all times in order to receive accurate results. You can have as many controls as necessary to achieve results.
Graphs are often an excellent way to display your results. In fact, most good science fair projects have at least one graph. For any type of graph: Generally, you should place your independent variable on the x-axis of your graph and the dependent variable on the y-axis.
Graphs of Functions y = sin(x) and y = cos(x) Topic Index | Algebra2/Trig Index | Regents Exam Prep Center Graphs of trigonometric functions can be produced in degrees or in radians.The graphs appearing here will be done in radians.int: When hand-drawing the graphs of sine and cosine, draw vertical dotted lines at intervals to remind you of the connection to the quadrants from the unit circle and to keep your graphs accurate.