you know its not the same as it was
you know it's not the same as it was you know it's not the same as it was song you know it's not the same as it was lyrics how to know if its a function or not its not what you know it's who you know quote its not what you know it's what you can prove how to know if its a right triangle or not how to know if its polynomial or not its okay not to know everything how to know if its quadratic or not