Answer:
8.3 (nearest tenth)
Step-by-step explanation:
ANSWER
D. As the x-values increase, the y-values would decrease
EXPLANATION
The given function is
![y = - \frac{1}{2} x - 7](https://tex.z-dn.net/?f=y%20%3D%20%20-%20%20%5Cfrac%7B1%7D%7B2%7D%20x%20-%207)
The slope of this function is
![m = - \frac{1}{2}](https://tex.z-dn.net/?f=m%20%3D%20%20-%20%20%5Cfrac%7B1%7D%7B2%7D%20)
Since the slope is negative, there is a negative or an inverse relationship between x and y.
As the values of x increases, the values of y decreases.
Also, as the values of x decreases, the values of y increases.
The first option is not true because as x is becoming bigger and bigger negatively, y will become positive.
For instance, when
![x = - 40](https://tex.z-dn.net/?f=x%20%3D%20%20-%2040)
![y = - \frac{1}{2} ( - 40) - 7](https://tex.z-dn.net/?f=y%20%3D%20%20-%20%20%5Cfrac%7B1%7D%7B2%7D%20%28%20-%2040%29%20-%207)
This implies that,
![y = 20 - 7 = 13](https://tex.z-dn.net/?f=y%20%3D%2020%20-%207%20%3D%2013)
Options B is obviously not true because the function has a negative relationship between x and y.
Option C is also false because, x can be positive since it is the independent variable.
See graph
Therefore, the correct answer is option D.
Answer:
3+37=40
3/40×1200=90kg
37÷40×1200=1110kg
Step-by-step explanation:
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