Is this correct

True or False: [4 Marks] FALSE 6. If the limit exists at x = a then the function is continuous at x = a. TRUE 7. A removable discontinuity is the only discontinuity in which the limit exists. TRUE 8. A cusp is not a discontinuity but does result in the derivative not existing. TRUE 9. The reason we use the limit as h->0 to find the slope is because A x -0 1