On the first day after the new moon, 2% of the moon's surface is illuminated. On the second day, 6% is illuminated.
Four images of the moon, each with a larger crescent illuminated.
1. Based on this information, use a linear model to predict the day on which the moon's surface is 50% illuminated and 100% illuminated. Type the answers in the boxes below.
The moon's surface will be 50% illuminated on day
12.5
.
The moon's surface will be 100% illuminated on day
a
.
Select the correct choices from the drop downs.
2. The moon's surface is 100% illuminated on day 14. Does this agree with the prediction you made in question 1?
3. Is the percentage illumination of the moon's surface a linear function of the day?
