PLEASE HELPP!!
(look at picture)

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Which is the graph of this function 3 square root of x plus one if