prec 11 week 11

When we calculate the inequality, for my experience , if the symbol is greater(linear and going up), the area is on the left; on the contrary , is on the right.

 

if it’s quadratic equation(opens up), if the symbol is greater , the area is inside the function; on the contrary, is  outside the function.

Leave a Reply

Your email address will not be published. Required fields are marked *