Solve the Problem $$f ( x ) = x ^ { 2 } + 3 , \quad [ - 4,2 ]$$

question 79

Essay

Solve the problem.
-Given the function f defined over the interval [a, b], graph the function indicating the area A under f from a to b. Then
express the area A as an integral. $$f ( x ) = x ^ { 2 } + 3 , \quad [ - 4,2 ]$$