Question 1

What is the vertex form of the quadratic function

y = 2x^2 + 8x + 6

?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 2

Which of the following is the correct factorization of the quadratic expression

y = 2x^2 + 8x + 6

?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 3

If a quadratic function is given by

y = 2x^2 + 8x + 6

, what is the axis of symmetry?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 4

What is the discriminant of the quadratic equation

y = 2x^2 + 8x + 6

and how many real solutions does it have?

Accepted Answer

Discriminant is

y = 2x^2 + 8x + 6

, no real solutions

Answer

Discriminant is

y = 2x^2 + 8x + 6

, one real solution

Answer

Discriminant is

y = 2x^2 + 8x + 6

, two real solutions

Answer

Discriminant is

y = 2x^2 + 8x + 6

, two real solutions

Question 5

What are the roots of the quadratic equation

y = 2x^2 + 8x + 6

?

Accepted Answer

y = 2(x + 2)^2 - 2

and

x = -5

Answer

y = 2(x + 2)^2 - 2

and

x = -5

Answer

y = 2(x + 2)^2 - 2

and

x = -5

Answer

y = 2(x + 2)^2 - 2

and

x = -5

Question 6

Which of the following quadratic functions opens downward and has a vertex at (1, 3)?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 7

What is the minimum value of the quadratic function

y = 2x^2 + 8x + 6

?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 8

Given the quadratic function

y = 2x^2 + 8x + 6

, what is the value of

f(1)

?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 9

What is the vertex form of the quadratic function

y = 2x^2 + 8x + 6

?

Accepted Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Answer

y = 2(x + 2)^2 - 2

Question 10

For the quadratic function

y = 2x^2 + 8x + 6

, what is the sum of its roots?

Accepted Answer

The sum of the roots is 4.

Answer

The sum of the roots is 8.

Answer

The sum of the roots is -4.

Answer

The sum of the roots is -16.

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