Answer please:) thanks

Question 13 of 451 pointwhich statement correctly describes the inverse of the following function? a. it is negative.b. it is a horizontal shift.c. it is not a function.d. it is a function. give an explanation as to why you chose that answer. (i think its either a or d.)

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom