- In the table, enter at least 4 pairs of values of
*x*and*y* (with some of them being negatives or decimals) satisfying the relation*y*=*x*+ 2. - Select these values, right-click and choose
“Create List of Points” to plot them on the rectangular coordinate plane. What do you observe? - Check the box “Mark positions satisfying the relation”.
Drag A to see the positions of A (in red) at which its coordinates satisfy the equation. What do we can if we plot ALL the pairs of values satisfying the equation in the graph?
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Key Stage 3 (Junior Secondary) > 3.1 Number & Algebra 數與數系 > Linear Equations in Two Unknowns 二元一次方程 >