The Great Debate: Would this rule create a positive or negative parabola?

This often stumps my students – does the following rule create a positive or negative parabola?

parabola

Whilst you are unlikely to be asked ‘is this a positive or negative parabola’, you’ll certainly need to appreciate what transformations have occurred to the basic parabola to create this new one. Check out this video to ensure you have the skills you need to¬†demonstrate mastery of the parabola!