Final answer:
The notation limₓ→−∞ f(x)=10 indicates that as the variable x approaches negative infinity, the value of the function f(x) approaches 10.
Step-by-step explanation:
The notation limₓ→−∞ f(x)=10 indicates that as the variable x approaches negative infinity, the value of the function f(x) approaches 10. In other words, the function approaches the value 10 as x gets smaller and smaller in the negative direction.