Quiz about Quadratics Vocabulary Extra Practice

Question 1

What is the y-intercept?

Accepted Answer

(0,6)

Answer

(-1,8)

Answer

(8,-1)

Answer

(6,0)

Question 2

Which method is most efficient to solve:
x² - 6x + 2 = 0

Accepted Answer

Completing the Square

Answer

Square Roots

Answer

Factoring

Answer

Quadratic Formula

Question 3

Which method is most efficient to solve:
x² - 11x + 10 = 0

Accepted Answer

Factoring

Answer

Square Roots

Answer

Completing the Square

Answer

Quadratic Formula

Question 4

Which method is most efficient to solve:
.02x² - .5x + 3 = 0

Accepted Answer

Quadratic Formula

Answer

Square Roots

Answer

Factoring

Answer

Completing the Square

Question 5

What are the roots?
2x² + 2x - 12 = 0

Accepted Answer

x = -3 ; x = 2

Answer

x = 3 ; x = -3

Answer

x = 12 ; x = -12

Answer

x = -2 ; x = 2

Question 6

What are the zeros of the function?
f(x) = x² + x - 20

Accepted Answer

x = -5 ; x = 4

Answer

x = 5 ; x = -4

Answer

x = -20 ; x = 0

Answer

x = 20; x = 0

Question 7

Next step in completing the square?
3x² + 18x - 6 = 0
1: 3x² + 18x = 6
2: 3(x² + 6x) = 6
3: ?

Accepted Answer

3(x² + 6x + 9) = 6 + 27

Answer

3(x² + 6x + 9) = 6 + 9

Answer

3(x² + 6x + 36) = 6 + 36

Answer

(x² + 6x) = 9

Question 8

Which quadratic is being solved in the formula?

Accepted Answer

2x² - 5x + 3

Answer

2x² + 5x + 3

Answer

3x² - 5x + 2

Answer

2x² - 5x - 3

Question 9

Which method is most efficient to solve:
8x² - 5x = 0

Accepted Answer

Factoring

Answer

Square Roots

Answer

Completing the Square

Answer

Quadratic Formula

Question 10

What are the x-intercepts?
x² + 6x - 3 = f(x)

Accepted Answer

$$x=-3\pm2\sqrt[]{3}$$

Answer

$$x=3\pm2\sqrt{3}$$

Answer

$$x=-3\pm3\sqrt{2}$$

Answer

$$x=-2\pm3\sqrt{3}$$

Question 11

Factor completely.

Accepted Answer

$$\left(n-3\right)^2$$

Answer

$$\left(n+9\right)^2$$

Answer

$$\left(n+3\right)^2$$

Answer

$$\left(n-9\right)^2$$

Question 12

Factor completely.

Accepted Answer

$$\left(v+1\right)^2$$

Answer

$$\left(v+1\right)\left(v-1\right)$$

Answer

$$\left(v+5\right)^2$$

Answer

$$\left(v+3\right)\left(v-3\right)$$

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