Question 1

1. Which is the standard form of 𝑓(𝑥)= 𝑥²+ 6𝑥+ 8?

Accepted Answer

𝑓(𝑥) = (𝑥+ 3)² − 1

Answer

𝑓(𝑥) = (𝑥 − 3) ² −1

Answer

𝑓(𝑥) = (𝑥+ 3)² + 1

Answer

𝑓(𝑥) = (𝑥 − 3) ² +1

Question 2

2. What is the value of h and k in item number 1?

Accepted Answer

C. h = -3, k = -1

Answer

h =-3, k = 1

Answer

h =3, k = 1

Answer

h =3, k = -1

Question 3

3. In changing 𝑓(𝑥) = 𝑥²+ 10𝑥+ 1 to standard form, what is the value of ___in

𝑓(𝑥)= (𝑥²+ 10𝑥+ ___) + 1 − 25?

Accepted Answer

25

Answer

-25

Answer

10

Answer

-10

Question 4

4. What is 𝑓(𝑥)= −𝑥²+ 2𝑥− 5 in standard form?

Accepted Answer

𝑓(𝑥) = −(𝑥 − 1) ² −4

Answer

𝑓(𝑥) = −(𝑥+ 1) ²+ 4

Answer

𝑓(𝑥) =−(𝑥 +1) ² − 4

Answer

𝑓(𝑥) = −(𝑥 − 1) ² +4

Question 5

5. Which is equivalent to 𝑓(𝑥) =−2𝑥²− 4𝑥− 2?

Accepted Answer

𝑓(𝑥) = −2(𝑥+ 1) ²

Answer

𝑓(𝑥) = (𝑥 − 1) ²

Answer

𝑓(𝑥) = −2(𝑥 − 1) ²

Answer

𝑓(𝑥) = (𝑥+ 2) ²

Question 6

6. Find the vertex of 𝑓(𝑥) = 2𝑥²− 5?

Accepted Answer

(0, -5)

Answer

(0, 5)

Answer

(2,-5)

Answer

(2,5)

Question 7

7. Which is equivalent to 𝑓(𝑥) =−2(𝑥− 2) ²− 3?

Accepted Answer

𝑓(𝑥) = −2𝑥 ² +8𝑥 −11

Answer

𝑓(𝑥) = −2𝑥²+ 8𝑥+ 11

Answer

𝑓(𝑥) = −2𝑥 ² −8𝑥 −11

Answer

𝑓(𝑥) = −2𝑥²− 8𝑥+ 11

Question 8

8. What is 𝑓(𝑥) = (𝑥+ $\frac{3}{2}$ ) ²+ ⅔ in general form?

Accepted Answer

𝑓(𝑥) =𝑥 ² + 3𝑥 + $\frac{3}{2}$

Answer

𝑓(𝑥) = 𝑥 ² −3𝑥 + $\frac{3}{2}$

Answer

𝑓(𝑥) = 𝑥²− 3𝑥+ $\frac{3}{2}$

Answer

𝑓(𝑥) = 𝑥²+ 3𝑥– $\frac{3}{2}$

Question 9

9. Transform 𝑓(𝑥)= (𝑥− ½)² − ⅓ to general form?

Accepted Answer

𝑓(𝑥) = 𝑥²− 𝑥− $\frac{3}{2}$

Answer

𝑓(𝑥) = 𝑥 ² + 𝑥 − $\frac{3}{2}$

Answer

𝑓(𝑥) = 𝑥 ² − 𝑥 + $\frac{3}{2}$

Answer

𝑓(𝑥) = 𝑥²+ 𝑥+ $\frac{3}{2}$

Question 10

10. What is the vertex of 𝑓(𝑥) = (𝑥− ½)² − ⅓?

Accepted Answer

(½, − ⅓)

Answer

(− ½, − ⅓)

Answer

(− ½, ⅓)

Answer

(½, ⅓)

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