Please help due in 2 days please

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test