What is an integral?
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Integrals are used to calculate the area under a function / curve.
Integrals, in essence, "reverse" derivatives by using antiderivatives.
They're essentially the "opposite" of derivatives.
Scenario: Imagine this function represents a race car's speed over the course of a race. What's the total distance the car traveled during the race from x = 0 to x = 4?
Solving for the integral enables us to calculate that area under the function from x = 0 to x = 4, representing (in this case) distance traveled!