y = 3 1 x 2 + 2 x − 3 x = − 9 ⇒ y = 3 1 ⋅ ( − 9 ) 2 + 2 ⋅ ( − 9 ) − 3 = 3 1 ⋅ 81 − 18 − 3 = 27 − 21 = 6 x = − 6 ⇒ y = 3 1 ⋅ ( − 6 ) 2 + 2 ⋅ ( − 6 ) − 3 = 3 1 ⋅ 36 − 12 − 3 = 12 − 15 = − 3 x = − 3 ⇒ y = 3 1 ⋅ ( − 3 ) 2 + 2 ⋅ ( − 3 ) − 3 = 3 1 ⋅ 9 − 6 − 3 = 9 − 9 = 0
x = 0 ⇒ y = 3 1 ⋅ ( 0 ) 2 + 2 ⋅ ( 0 ) − 3 = 3 1 ⋅ 0 − 0 − 3 = 0 − 3 = − 3 x = 3 ⇒ y = 3 1 ⋅ 3 2 + 2 ⋅ 3 − 3 = 3 1 ⋅ 9 + 6 − 3 = 3 + 3 = 6
To graph the equation y = 3 1 x 2 + 2 x − 3 , identify that it's a quadratic function with its vertex at ( − 3 , − 6 ) and a y-intercept at ( 0 , − 3 ) . Calculate additional points such as ( − 6 , − 3 ) and ( 3 , 6 ) , then sketch the upward-opening parabola through these points.
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Jawaban:Seperti angin sepoi yang menyejukkan siang, hadirmu membawa damai tanpa banyak kata.Tak perlu badai untuk menyentuh hati, cukup angin sepoi yang membawa rindu.Angin sepoi mengingatkanku bahwa ketenangan bukan kelemahan, tapi bentuk tertinggi dari kedewasaan.Semoga bermanfaat