we need to get y alone so divide both sides of the equation by -3
y = (-2/3)x + 7/3
Answer:
rational
Step-by-step explanation:
Any rational number can be expressed in the form
← where a and b are integers
Given
= - 2 or + 2
Since - 2 =
and 2 =
← both in rational form, then
is rational
I think it would be continuous.
Answer:
1. k = 240
2. ![y=\dfrac{240}{x}](https://tex.z-dn.net/?f=y%3D%5Cdfrac%7B240%7D%7Bx%7D)
3. 30 hours
Step-by-step explanation:
1. if y varies inversely:
![\implies y=\dfrac{k}{x}](https://tex.z-dn.net/?f=%5Cimplies%20y%3D%5Cdfrac%7Bk%7D%7Bx%7D)
![\implies 40=\dfrac{k}{6}](https://tex.z-dn.net/?f=%5Cimplies%2040%3D%5Cdfrac%7Bk%7D%7B6%7D)
![\implies k=240](https://tex.z-dn.net/?f=%5Cimplies%20k%3D240)
2.
![\implies y=\dfrac{240}{x}](https://tex.z-dn.net/?f=%5Cimplies%20y%3D%5Cdfrac%7B240%7D%7Bx%7D)
3. If x = 8:
![\implies y=\dfrac{240}{8}=30](https://tex.z-dn.net/?f=%5Cimplies%20y%3D%5Cdfrac%7B240%7D%7B8%7D%3D30)
The general equation of a circle, with radius R and center (h, k) is:
![(x-h)^2+(y-k)^2=R^2](https://tex.z-dn.net/?f=%28x-h%29%5E2%2B%28y-k%29%5E2%3DR%5E2)
Using the data given, the equation would be: