Answer:
3
Step-by-step explanation:
First, we need to understand what the problem is asking for.
The range of a function is the set of the y-coordinates of all the points of the function.
The domain of a function is the set of the x-coordinates of all the points of the function.
"A range value" means the same as "the y-coordinate of one point."
This problem is telling you that the y-coordinate of a point of function f(x) = -2x + 6 is 0. Then it asks what its domain value is. It is asking you what is the x-coordinate of the point that has 0 as its y-coordinate.
Simply put, for function f(x) = -2x + 6, when y = 0, what is x?
f(x) = −2x + 6
-2x + 6 = -
-2x = -6
x = 3
Answer: 3
