6th Year OL Maths October Exam

Teacher: ____________________________ Name:_____________________________________

Question 1 (25 marks)

Question 2 (25 marks)

Question 3 (25 marks)

Question 4 (25 marks)

(𝒂) 𝑺𝒐𝒍𝒗𝒆 𝒕𝒉𝒆 𝒆𝒒𝒖𝒂𝒕𝒊𝒐𝒏 𝒙𝟐 + 𝟐𝒙 − 𝟒 = 𝟎 𝒂𝒏𝒅 𝒈𝒊𝒗𝒆 𝒚𝒐𝒖𝒓 𝒂𝒏𝒔𝒘𝒆𝒓𝒔 𝒄𝒐𝒓𝒓𝒆𝒄𝒕 𝒕𝒐 𝒕𝒘𝒐 𝒅𝒆𝒄𝒊𝒎𝒂𝒍 𝒑𝒍𝒂𝒄𝒆𝒔.

(𝒃)𝑺𝒉𝒐𝒘 𝒕𝒉𝒂𝒕 𝒕𝒉𝒆 𝒄𝒐 − 𝒐𝒓𝒅𝒊𝒏𝒂𝒕𝒆𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒕𝒖𝒓𝒏𝒊𝒏𝒈 𝒑𝒐𝒊𝒏𝒕 𝒐𝒇 𝒕𝒉𝒆 𝒇𝒖𝒏𝒄𝒕𝒊𝒐𝒏 𝒇(𝒙) = 𝒙𝟐 + 𝟐𝒙 − 𝟒,

𝒙 ∈ 𝑹, 𝒂𝒓𝒆 (−𝟏, −𝟓).

Question 5 (25 marks)

Question 6 (25 marks)

Question 7 (50 marks)

Question 8 (40 marks)

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