Alterations of Graphs Quadratic Functions

What are the x-intercept(s) of the function
g(x) = -9(x-3)(x+2)?

• (3,0) and (-2,0)

• (-3,0) and (2,0)

• (3,-2)

• (-9,0), (3,0), and (-2,0)

What are the domain and range of the parabola shown?

• Domain: x≥-4
  Range: all real numbers

• Domain: all real numbers
  Range: y <-4

• Domain: all real numbers
  Range: y ≥-4

• Domain: x < -1
  Range: all real numbers

What is the y-intercept for the function
y = -(x+2)²+9?

• (0,9)

• (0,5)

• (-2,9)

• (2,0)

Which type of function is given by the table?

• Quadratic

• Linear

• Exponential

• Piecewise

What is the equation for the axis of symmetry of the parabola 
y = 4x²-7?

• x=0

• x= -7

• x = 4

• x = 7

The equation h = -16t²+25t+18 represents the height of a ball thrown into the air after t seconds. At what time does the ball reach the maximum height?

• .78125 seconds

• .75 seconds

• .5 seconds

• .687 seconds

Write the equation of a parabola that goes through the point (6, -108) and has the vertex (1,-8).

• y= 6(x+1)² - 8

• y= 7(x-1)² - 8

• y= -4(x-1)² - 8

• y= (x-1)² - 8

Write the equation of a parabola that has x-intercepts (5,0) and (-3,0) and has y-intercept (0,-37.5).

• y= -3(x-5)(x+3)

• y= 2.5(x-5)(x+3)

• y= 4.5(x-5)(x+3)

• y= 3(x-5)(x+3)

Find f(9) if f(x) = -(x+2)(x-4).

• -39

• 38

• 56

• -55

Which of the following is the correct equation for the given graph?

• f(x) = -(x + 2)² - 4

• f(x) = -(x - 2)² - 4

• f(x) = -3(x - 2)² - 4

• f(x) = -3(x + 2)² - 4