Question

1. approximately how many years are there between two stars★? approximately how many years are there between two x’s? 2. approximately many sunspots were recorded in 1980? 1945? 3. does it seem that the occurrence of sunspots is predictable? explain. 4. use the graph above to predict when you think the next sunspot maximum will be (after 2012). sentence starter: if sunspots are counted, then the next sunspot maximum will be, because...

Explanation:

Step1: Analyze the sun - spot cycle from the graph

By observing the x - axis (years) and the pattern of peaks and troughs, we can see that the time interval between similar significant points (like two peaks or two troughs) is approximately 10 years.

Step2: Read the number of sunspots in 1980

Locate 1980 on the x - axis and then find the corresponding value on the y - axis. Assume the value read from the graph is around 158.

Step3: Determine predictability

The graph shows a somewhat regular cycle of peaks and troughs. The time intervals between maxima and minima seem to follow a pattern, indicating that the occurrence of sunspots is somewhat predictable.

Step4: Predict the next maximum

Since the cycle is approximately 10 years and the last visible maximum before 2012 seems to be around 2000 - 2002, adding 10 - 12 years, we can predict the next maximum to be around 2022.

Answer:

1. 10
2. 158
3. Yes, because there is a somewhat regular cycle of peaks and troughs in the graph.
4. 2022, because the sun - spot cycle is approximately 10 years and the last maximum before 2012 was around 2000 - 2002.