How do you use the important points to sketch the graph of #y=x^2 - x - 12 = 0#?
1 Answer
Jul 26, 2017
Factorise first
Explanation:
If you factorise this equation, you will get:
Putting each bracket equal to zero gives
If you put
As it's a quadratic (power of 2 in the equation) it will be a smooth, U-shaped curve going through the above points.