To find the change in temperature from 9 a.m. to noon, we can use the following equation:
Change in temperature = Temperature at noon - Temperature at 9 a.m.
Let's plug in the values:
Temperature at noon = -1.6 degrees Celsius
Temperature at 9 a.m. = -5.8 degrees Celsius
Now, we'll set up the equation:
Change in temperature = (-1.6) - (-5.8)
When we subtract a negative number, it's like adding that number, so we can rewrite the equation:
Change in temperature = (-1.6) + 5.8
Now we calculate it:
Change in temperature = 5.8 - 1.6 = 4.2 degrees Celsius
So, the change in temperature during these three hours was an increase of 4.2 degrees Celsius.
What this means: This means that the air got warmer between 9 a.m. and noon. It started at -5.8 degrees Celsius, which is quite cold, and by noon it had risen to -1.6 degrees Celsius, which is still below freezing but much warmer than it was before. This 4.2 degree increase tells us that the weather is starting to get a little more comfortable!