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CAIE IGCSE Mathematics Extended E3.5.1 Interpret and Obtain the Equation of a Straight Line Graph Questions

Practise Extended CAIE IGCSE Mathematics by finding line equations, simplifying forms and reading gradients and intercepts.

Syllabus
2028–2030
Course
Mathematics 0580
Level
Extended

Exam points

  • Obtain the equation of a straight line from a graph, points or given information.
  • Convert and simplify a line equation into the required form.
  • Read the gradient and y-intercept from a linear equation or graph.

CAIE IGCSE Mathematics Extended E3.5.1 Interpret and Obtain the Equation of a Straight Line Graph Questions question 1

[Maximum number: 3]

9 A is the point (0,2), B is the point (3,3) and C is the point (4,0).

Find the equation of the line AC.
Give your answer in the form y=mx+c.
y=

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