Answer:
The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to 10 a.m. was -10 1/2 degrees
Step-by-step explanation:
Initially, the temperature was 3 1/2 degrees Fahrenheit at 3 a.m. From 3 a.m., the temperature change at 1 1/2 degrees per hour for the next 7 hours. This means that the temperature change in the next 7 hours is:
Temperature change = 7(-1 1/2) = -10 1/2
In the next 7 hours from 3 a.m. to 10 a.m., that is at 10 a.m. (3 a.m. + 7 hours), the temperature change was -10 1/2 degrees Fahrenheit.
Hence:
The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to 10 a.m. was -10 1/2 degrees
By looking at the graph, we can see that:
- Domain: -7 ≤ x ≤ 6
- Range: -4 ≤ y ≤ 5.
<h3>
How to find the domain and range of a function?</h3>
For a function:
y = f(x)
We define the domain as the set of the possible inputs x, and the range as the set of the possible outputs y.
Here, to find the domain, we need to see the range of "horizontal values" that the graph takes. We can see that it goes from -7 to 6, then the domain is:
-7 ≤ x ≤ 6
The range goes from -4 to 5, so the range is: -4 ≤ y ≤ 5.
Then the correct option is the first one.
If you want to learn more about domain and range, you can read:
brainly.com/question/1770447
The zeros if the function are -8 and -7
There was a tree that had 6 times a apples on it. 16 apples were rotten. If b=how many apples are still on the tree, then how many apples are left?
60% of what equals 27? This is the question. "Of" always means multiply.
So... convert the percent to a decimal: .6x=27.
Divide: x=27/.6
x=45
Plug it back in to check: .6(45)=27
27=27.
Or: 27/45=.6
.6=.6
