I can generate coordinate pairs for a cubic graph from its equation and then draw the graph.
I can generate coordinate pairs for a cubic graph from its equation and then draw the graph.
Cubic - A cubic is an equation, graph, or sequence whereby the highest exponent of the variable is 3
To draw a graph, points should always be joined with line segments.
For the graph of $$y=x^3$$ show the line joining $$(0,0)$$ and $$(1,1)$$ and ask pupils to test some coordinate pairs from that line in the original equation. For example, $$(1/2,1/2)$$ does not satisfy the equation.
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$$x=-2$$ - $$y=-10$$
$$x=-1$$ - $$y=-3$$
$$x=0$$ - $$y=-2$$
$$x=1$$ - $$y=-1$$
$$x=2$$ - $$y=6$$
$$x=3$$ - $$y=25$$
