 In this video we provide the solution to question number four for the practice final exam for math 1210 We're asked to compute the limit as x approaches zero from the left of f of x where f of x is provided to us as this Piecewise function so for approaching zero from the left. We have to figure out what interval Contains numbers that are really close to zero, but from the left So a little bit smaller than zero those in particular be negatives And we see that the domain that would apply to this situation would be x is less than zero That's the domain for which we can approach zero from the left. So as our function is Piecewise continuous function that is it's constructed from pieces of continuous functions once we have the right domain We see that this limit It's gonna be the same as the limit as x approaches zero from the left of 2x plus 3 for which we can compute that just by Continuity sake that is we can plug in plug in x equals zero. We get 2 times 0 plus 3 Which is then going to give us 3 so we see that the correct answer would then be choice a