Domain is set of all x-values. You are supposed to focus on the x-axis instead.
From the graph, the point starts from x = -5 and ends on x = 5. That means no values would exist after x = 5 or before x = -5.
Hence, the domain starts from -5 to 5.
Answer
Non-linear
The line should be an exponential function, as it halves in mass every time a certain amount of time has passed.
Answer:229.1
Step-by-step explanation: to much work I thought to hard that’s the answer your welcome buddy