Quadratic Graphs and Equations

The domain of the function y = 2x² - 10x + 5 is...

• (-inf,+inf)

• (-inf,-7.5]

• [-7.5,+inf)

• [0,+inf)

The range of the function y = 2x² - 10x + 5 is...

• (-inf,+inf)

• (-inf,-7.5]

• [-7.5,+inf)

• [0,+inf)

Identify the y-intercept for the graph of y = -4x² - 24x + 7. Enter your answer as an ordered pair with NO spaces. (x,y)

Write the equation for this parabola: a=-1/9 and has a vertex at (1,-6).

• y = -1/9 (x+1)² - 6

• y = -1/9 (x-1)² + 6

• y = 1/9 (x-1)² - 6

• y = -1/9 (x-1)² - 6

If the parabola passes through the points (0,1) , (2,9) and (-1,0), then the value of c for the equation would be

• 1

• 2

• 9

• -1

If the parabola passes through the points (0,1) , (2,9) and (-1,0), then the equations to find a and b will be

• 4a+2b=8 and -1a-1b=-1

• 4a+2b=8 and -2a-1b=-1

• 4a+2b=10 and 1a-1b=1

• 4a+2b=8 and 1a-1b=-1

Describe how the following function y = (x-2)² - 2 1/2 is translated from f(x) = x². Check all that apply.

• translated right 2 units

• translated down 2 units

• translated left 2 1/2 units

• translated down 2 1/2 units

• translated left 2 units

Describe how the following function y = (x+3)² - 6 is translated from f(x) = x². Check all that apply.

• translated right 3 units

• translated down 6 units

• translated left 6 units

• translated up 6 units

• translated left 3 units

What is the value of the minimum if the vertex is (2.5,-7.5)?

Identify the equation for the axis of symmetry for the graph of y = -4x² - 24x + 7. Enter your answer as an equation: x=___. DO NOT use any spaces.