Question 1001927
yes it is.


y = 2 is a horizontal line.


the value of y is equal to 2 regardless of what the value of x is.


however, each value of x yields one and only one value of y, therefore the equation is a function.


you can have multiple values of x for each value of y, but you cannot have multiple values of y for each value of x.


that's the definition of a funcftion.


only 1 value of y for each and every value of x.


graph the equation and give it the vertical line test and you'll see that each and every value of x yields only 1 value of  y.


here's the graph:


{{{graph(600,600,-10,10,-5,5,2)}}}