Please help me I would really appreciate it

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

If f(x)=3 over x+2 - square root x-3 then f(7)=

Analyze the solution below. 7 3 x = −2 7 3 x(3 7 ) = −2(3 7 ) x = − 6 7 what property was used to solve the equation? property of opposites division property of equality addition property of equality multiplication property of equality