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1 markGraphs of Linear Functions

CSEC Mathematics · 2021 · Paper 2 · Question 4(a)(i)

The diagram shows two lines, L_1 and L_2. The equation of the line L_1 is x + 2y = 10. The line L_2 passes through the point (0, -5) and is perpendicular to L_1.

Express the equation of the line L_1 in the form y = mx + c.

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Other parts of this question

  1. 4(a)(ii)State the gradient of the line L_1.[1 mark]
  2. 4(a)(iii)Hence, determine the equation of the line L_2.[2 marks]
  3. 4(b)(i)Determine the value of f(9).[1 mark]
  4. 4(b)(ii)Calculate the value of fg(-3).[2 marks]
  5. 4(b)(iii)Determine the value of x, for which g(x) = \frac{5}{2}.[2 marks]

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