Answer
Domain = -8, -2, 1 and 4.
Range = -10, 0 and 10.
Function? = YES
Step-by-step explanation
- The domain of a function refers to the values of the independent variable (x), where the dependent variable [y or f(x)] or the function has a corresponding real value. The domain is simply the values of x for which the output also exists.
For this question, it is evident that the domain includes the values of x on the left; -8, -2, 1 and 4.
- The range of a function refers to the region of values where the fumction can exist. It refers to the values that the dependent variable [y or f(x)] can take on.
For this question, we can see that the range includes the values of y on the right, obtained from the values of x in the domain; -10, 0 and 10.
- A function is an expression that takes up each value of an independent variable (x) and gives a corresponding value of a dependent variable (y) without the same values of the independent variable (x) giving different values of the dependent variable (y).
From the mapping shown, we can see that the the same value of x doesn't give different values of y, so, we can conclude that this is a function.
Hope this Helps!!!