Question 1

What is the vertex form of the quadratic function

f(x) = x^2 + 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

In the quadratic function

f(x) = x^2 + 6x + 8

, what is the coefficient of the linear term?

Accepted Answer

-4

Answer

2

Answer

-1

Answer

1

Question 3

What is the solution set of the quadratic equation

f(x) = x^2 + 6x + 8

?

Accepted Answer

{2, 3}

Answer

{3, -2}

Answer

{1, 6}

Answer

{-2, -3}

Question 4

What is the axis of symmetry of the quadratic function

f(x) = x^2 + 6x + 8

?

Accepted Answer

x = -2

Answer

x = 0

Answer

x = 2

Answer

x = -4

Question 5

Which of the following represents the factored form of the quadratic function

f(x) = x^2 + 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 6

What is the y-intercept of the quadratic function

f(x) = x^2 + 6x + 8

?

Accepted Answer

5

Answer

0

Answer

-2

Answer

3

Question 7

What is the discriminant of the quadratic equation

f(x) = x^2 + 6x + 8

, and what does it indicate about the nature of the roots?

Accepted Answer

The discriminant is 36, indicating two distinct real roots.

Answer

The discriminant is 16, indicating two distinct real roots.

Answer

The discriminant is -36, indicating two complex roots.

Answer

The discriminant is 0, indicating one real root.

Question 8

For the quadratic function

f(x) = x^2 + 6x + 8

, what is the direction of the parabola?

Accepted Answer

The parabola opens downwards.

Answer

The parabola opens upwards.

Answer

The parabola opens to the left.

Answer

The parabola opens to the right.

Question 9

What are the roots of the quadratic function

f(x) = x^2 + 6x + 8

?

Accepted Answer

{3, -3}

Answer

{9, -9}

Answer

{0, -9}

Answer

{0, 9}

Question 10

Find the axis of symmetry of the quadratic function

f(x) = x^2 + 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

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