3) 4 -4 lechtify the key characteristics of the function and graph it. 30 x f ( x ) = 2x2 - 8 x2 - x - 6 Hole (s) : VA: x-int: Sa' - HA: y-int: 50 SA: Sr - er Ex 4: Identify the key characteristics of the function and graph it. f ( x ) = - 3x x2 - 9 Hole (s) : VA: X-int: - x HA: y-int: SA : Check your own understanding: 1. Circle each function that has a horizontal asymptote at y = 0. f (x) = 2x+2 x 2 - 4 f (x ) =: 3x f (x ) = x+1 x 2 - 9 X - 3 f (x ) = 2x 2x 2 - 6x f (x) = 72-1 2. Circle each function that has a vertical asymptote at x = 3. f ( x ) = = x+1 f (x) = 2x+2 ~x2 - 4 f ( x ) = f (x ) = 3x x 2 - 9 x - 3 2x 2x2 - 6x f (x) = x2 - 1 3. Circle the x-intercepts of the function f (x) = =4? -4 -2 0 2 4 2x