I need a answer for this

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52