Since x is never less than -4 but is equal to it at one point and is less than 0 in some points, the only possible answer and the correct answer is x ≥ -4.
So the domain to this graph is x ≥ -4.
Answer: The function is: f(x) = 2*(x +1)
Step-by-step explanation:
This can be translated to:
"write an equation of a function where a whole number x corresponds to the next number to x"
the next whole number to x is x+1., and we want the double of that.
Then we have that our function is:
f(x) = 2*(x +1)
Now we can do a little table of it:
f(0) = 2*(0 + 1) = 2
f(1) = 2*(1 + 1) = 4
f(2) = 2*(2+ 1) = 6
I think it is always true. I am not sure but I hope I'm right
3/10=30/100=30%
7/20=35/100=35%
8/25=32/100=32%
