Query about Question 3 from "PrepSwift: Finding the Minimum Value" [3206] newww

[user15771]

https://prepswift.gregmat.com/quizzes/quiz/prepswift-finding-the-minimum-value (Question 3)

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if we do this question via equations, don’t we get y min as -1/4 at x=-3/2?

[Kweku]

@user15771

if we do this question via equations, don’t we get y min as -1/4 at x=-3/2?

Can you show how?