Question

tolong di jawab yaaaaa​

Answer 1

Tabel

[tex]\begin{gathered} \begin{gathered} \boxed{\begin{array}{c|c} \underline{\tt \: \: x \: \: }& \underline{\tt~~ {2x}^{2} + 7x - 4~~} \\\tt - 5& \tt 11 \\\tt - 4& \tt 0\\\tt - 3& \tt - 7\\\tt - 2& \tt - 10\\\tt - 1& \tt - 9\\\tt 0& \tt - 4\\\tt 1& \tt 5\\\tt 2& \tt 18\end{array} } \end{gathered} \end{gathered}[/tex]

Langkah-langkah

• Bayangan x = -5

→ y = 2((-5)²) + 7(-5) - 4

→ y = 2(25) - 35 - 4

→ y = 50 - 35 - 4

→ y = 11

• Bayangan x = -4

→ y = 2((-4)²) + 7(-4) - 4

→ y = 2(16) - 28 - 4

→ y = 32 - 28 - 4

→ y = 0

• Bayangan x = -3

→ y = 2((-3)²) + 7(-3) - 4

→ y = 2(9) - 21 - 4

→ y = 18 - 21 - 4

→ y = -7

• Bayangan x = -2

→ y = 2((-2)²) + 7(-2) - 4

→ y = 2(4) - 14 - 4

→ y = 8 - 14 - 4

→ y = -10

• Bayangan x = -1

→ y = 2((-1)²) + 7(-1) - 4

→ y = 2(1) - 7 - 4

→ y = 2 - 7 - 4

→ y = -9

• Bayangan x = 0

→ y = 2(0²) + 7(0) - 4

→ y = 0 + 0 - 4

→ y = -4

• Bayangan x = 1

→ y = 2(1²) + 7(1) - 4

→ y = 2 + 7 - 4

→ y = 5

• Bayangan x = 2

→ y = 2(2²) + 7(2) - 4

→ y = 8 + 14 - 4

→ y = 18

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@BeruangGemoy :•