Answer:
I believe the correct answer is B! Hope this helped.
2x+(x-10)=4
3x-10=4
3x=14
x=4.6 repeating
Domain is the set of x-values and range is the set of images f(x).
x F(x) = x + 7
-9 -9 + 7 = -2
-8 -8 + 7 = -1
-7 -7 + 7 = 0
-6 -6 + 7 = 1
-5 -5 + 7 = 2
-4 -4 + 7 = 3
-3 -3 + 7 = 4
So the range is {-2,4} <------ answer
The answer would be A: R= C over 2 pi
Hope this helps :)
