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Year 8 Maths Graphing Linear Equations

Finding the Equation of a Line

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Question 1
32373

The graph shows a straight line. Some points on the line are marked.

Horizontal lineA horizontal line through (-3, 3), (0, 3) and (2, 3). x y −5 −4 −3 −2 −1 1 2 3 4 5 −3 −2 −1 1 2 3 4 5
(i) Write the rule linking \(x\) and \(y\).
(ii) Find the value of \(y\) when \(x = -1\).
Part a:
A.
\(x = 3\)
B.
\(y = 3\)
Correct
C.
\(y = 3x\)
D.
\(y = x + 3\)
Part b: \(y=\) 
3
1 mark

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