1. Graph the function. Identify the vertex and axis of symmetry.

f(x) = x2 + 4x + 1

2. Graph the function. Identify the vertex and axis of symmetry.

f(x) = x2 +4x – 2

3. Which equation represents the axis of symmetry of the function y = –2x² + 4x –6?

4. A ball is thrown into the air with an upward velocity of 28 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t2 + 28t + 7. How long does it take the ball to reach its maximum height? What is the ball’s maximum height? Round to the nearest hundredth, if necessary

Question

1.   Graph the function.  Identify the vertex and axis of symmetry.

f(x) = x2 + 4x + 1 


2.   Graph the function.  Identify the vertex and axis of symmetry.

f(x) = x2 +4x – 2


3.   Which equation represents the axis of symmetry of the function y = –2x² + 4x –6? 


4.   A ball is thrown into the air with an upward velocity of 28 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t2 + 28t + 7. How long does it take the ball to reach its maximum height? What is the ball’s maximum height? Round to the nearest hundredth, if necessary