Answer:
Fourth option
Step-by-step explanation:
Given the following question:
[tex]f(x)=-12x+15[/tex]
The domain of a function is all possible x inputs for a function, on the contrary range of a function would be all possible y inputs for a function.
[tex]f(x)=-12x+15[/tex]
Since the function has all defined points, it basically means that the functions possible x inputs are "all real numbers" or the fourth option.
[tex]-\infty \: < x < \infty[/tex]
Hope this helps.