Find the directions in which the function increases and decreases

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

The area of square garden is 300m squared. how long is the diagonal?