A room is warming up such that the temperature rise, in degrees Fahrenheit, is proportional to the time the room has been heating. After 4
minutes, the room temperature rose 12 degrees Fahrenheit. What is the
constant of proportionality for the ratio of the temperature rise to the
time? Express as a unit rate with appropriate units.

do have an equation or graph or

step-by-step explanation:

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.