Question

Draw the graphs in he Cartesian plane of each of the following linear equations.

(ix) 2y + 3 = 9

Answer 1

$$\begin{gathered} 2y+3=9 \\ \Rightarrow 2y=6 \\ \Rightarrow y=3 \end{gathered}$$

This equation is of the form y = a.
Hence, graph of this equation is a line parallel to X-axis at a distance of 3 units in the positive direction of Y-axis.