Question 1

A quadratic function 𝑦 = (x+2)² − 1 is equivalent to which of the following?

Accepted Answer

y = 𝑥² + 4𝑥 + 3

Answer

y = 𝑥² + 2𝑥 + 4

Answer

y = 𝑥² - 2𝑥 + 4

Answer

y = 𝑥² - 4𝑥 + 3

Question 2

The vertex form 𝑦 = 3(x-1)² + 2 is transformed to which of the following

function?

Accepted Answer

y = 3𝑥² - 6𝑥 + 5

Answer

y = 3𝑥² + 6𝑥 + 5

Answer

y = 3𝑥² - 3𝑥 + 2

Answer

y = 3𝑥² + 3𝑥 + 2

Question 3

The quadratic function 𝑦 = 𝑥² + 2𝑥 − 1 is expressed in vertex form as

Accepted Answer

𝑦 = (x+1)² − 2

Answer

𝑦 = (x+1)² + 1

Answer

𝑦 = (x+1)² + 2

Answer

𝑦 = (x+1)² − 1

Question 4

What is (h,k) of the quadratic function 𝑓(x) = 2𝑥² + 3𝑥 − 4?

Accepted Answer

(−3/4 , -41/8)

Answer

(3/4 , -41/8)

Answer

(3/4 , 41/8)

Answer

(−3/4 , 41/8)

Question 5

The expression 4𝑥² + 12𝑥 + 9 can be expressed as which of the following?

Accepted Answer

(2x+3)2

Answer

(4x+9)2

Answer

(2x-3)2

Answer

(4x-9)2

Question 6

What is 𝑦 = −3(x+1)² + 2 when written in the form 𝑦 = 𝑥² + bx + c?

Accepted Answer

y = −3𝑥² - 6𝑥 − 1

Answer

y = −3𝑥²+ 6𝑥 − 1

Answer

y = −3𝑥²+ 6𝑥 + 1

Answer

y = 3𝑥² − 6𝑥 + 1

Question 7

In the quadratic function of 𝑦 = 2(x-3)² + 5 , what are the values of (h,k) ?

Accepted Answer

(3,5)

Answer

(-3,5)

Answer

(2,-3)

Answer

(2,3)

Related quizzes