Year 11 Maths - General Linear Graphs and Models

Finding The Equation of a Straight-Line Graph From Its Intercept and Slope

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Questions

Question 1

30329

Find the equation of the line from the graph.

Answer

\(y=x+2\)

Worked Solution

\begin{align}
&\text{From the graph the } y\text{-intercept}=2\\
&\text{From the points } (0,2) \text{ and } (1,3)\\
&\quad \begin{aligned}
m&=\frac{3-2}{1-0}=1 \\
\therefore y&=x+2
\end{aligned}
\end{align}

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