Given the function f(x)=x^2+10x+23f(x)=x 2
+10x+23, determine the average rate of change of the function over the interval -9 \ le x \ le 0−9≤x≤0.

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?