WHERE ARE MY CLIKKIES AT WHERE'S MY CLIQUE??? ||-//

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

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

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie