Elicit

1. The quadratic function 𝑓(𝑥) = 𝑥² + 2𝑥 − 1 is expressed in vertex form as:

• A. 𝑓(𝑥) = (𝑥 + 1)² + 1

• B. 𝑓(𝑥) = (𝑥 + 1)² − 2

• C. f(𝑥) = (𝑥 + 1)² + 2

• D. 𝑓(𝑥) = (𝑥 + 1)² − 1

2. What is 𝑓(𝑥) = −3(𝑥 + 2)² + 2 when written in the form 𝑓(𝑥) = 𝑎𝑥² + 𝑏𝑥 + 𝑐?

• A. 𝑓(𝑥) = −3𝑥² + 12𝑥 − 10

• B. 𝑓(𝑥) = 3𝑥² − 12𝑥 + 10

• C. 𝑓(𝑥) = −3𝑥² + 12𝑥 + 10

• D. 𝑓(𝑥) = −3𝑥² − 12𝑥 − 10

3. The graph of 𝑦 = 𝑥² − 3 is obtained by sliding the graph of 𝑦 = 𝑥²:

• A. 3 units downward

• B. 3 units upward

• C. 3 units to the right

• D. 3 units to the left

4. In the quadratic function 𝑦 = 𝑥² − 2𝑥 − 3, what is the coordinates of the vertex?

• A. (−1, −2)

• B. (−2, 4)

• C. (1, −4)

• D. (3, −2)

5. What is the axis of symmetry of the function 𝑦 = −𝑥² + 4𝑥 + 5?

• A. 𝑥 = 1

• B. 𝑥 = −5

• C. 𝑥 = −3

• D. 𝑥 = 2

6. In the equation 𝑦 = 𝑥² + 3𝑥 + 1, determine the opening of the graph.

• A. to the left

• B. to the right

• C. downward

• D. upward

7. In the equation 𝑦 = 𝑥² + 3𝑥 + 1, what is the coordinates of the vertex?

• A. (-3/2, -5/4)

• B. (1/2, -4/5)

• C.(-2/3, -3/4)

• D. (3/4, 1/4)

8. In the equation 𝑦 = 𝑥² + 3𝑥 + 1, what is the equation of the axis of symmetry?

• A. x = 2/3

• B. x = -3/2

• C. x = 3/2

• D. x = -2/3

9. What is the equation of the quadratic function with a graph at the right?

• A. 𝑦 = 3𝑥²

• B. 𝑦 = −𝑥² + 3

• C. 𝑦 = 𝑥² + 3

• D. 𝑦 = 3𝑥² − 3

10. Determine the vertex of the parabola in the quadratic function 𝑦 = 4 − 𝑥².

• A. (0, 4)

• B. ( −1, −2)

• C. ( 2, −4)

• D. (−4,0)