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Correct quiz answers unlock more play!  7 questions
• Q1

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

y = 𝑥2 + 2𝑥 + 4

y = 𝑥2 - 2𝑥 + 4

y = 𝑥2 - 4𝑥 + 3

y = 𝑥2 + 4𝑥 + 3

45s
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• Q2

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

function?

y = 3𝑥2 - 6𝑥 + 5

y = 3𝑥2 + 6𝑥 + 5

y = 3𝑥2 - 3𝑥 + 2

y = 3𝑥2 + 3𝑥 + 2

60s
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• Q3

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

𝑦 = (x+1)2 + 1

𝑦 = (x+1)2 − 2

𝑦 = (x+1)2 + 2

𝑦 = (x+1)2 − 1

60s
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• Q4

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

(3/4 , -41/8)

(−3/4 , -41/8)

(3/4 , 41/8)

(−3/4 , 41/8)

60s
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• Q5

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

(4x+9)2

(2x-3)2

(2x+3)2

(4x-9)2

60s
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• Q6

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

y =  −3𝑥2 - 6𝑥 − 1

y =  −3𝑥2 + 6𝑥 − 1

y =  −3𝑥2 + 6𝑥 + 1

y = 3𝑥2 − 6𝑥 + 1

60s
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• Q7

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

(-3,5)

(2,-3)

(3,5)

(2,3)

60s
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