G8 | Maths Made Easy

G8

Question: A curve is given by the function 

y=x^2+2x-6.

 

Solution: We want to fill the table by substituting the x values into the equation.

Now, we want to plot these points and join them together with a smooth curve (it’ll become obvious when you plot them that they don’t form a straight line).

Doing this, we get the graph shown below.