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2 marksDirect and Inverse Variation

CSEC Mathematics · Question 4(a)(ii)

The quantity P varies inversely as the square of V.

Given that V = 3 when P = 4, determine the positive value of V when P = 1.

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Other parts of this question

  1. 4(a)(i)Using the letters P, V and k, form an equation connecting the quantities P and V.[1 mark]
  2. 4(b)(i)Solve the inequality -7 < 3x + 5 ≤ 7.[2 marks]
  3. 4(b)(ii)Represent your answer in (b)(i) on the number line shown below.[1 mark]
  4. 4(c)(i)Determine the coordinates of Q.[1 mark]
  5. 4(c)(ii)What is the gradient of this line?[2 marks]

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