Quadratic Function I - Ambitious

Question 1: Complete the square:

x^{2} - 12 x + 18

A

{(x - 6)}^{2} - 18

B

{(x - 6)}^{2} + 15

C

{(x - 6)}^{2} - 12

D

{(x - 6)}^{2} - 24

Question 2: Complete the square:

3 x^{2} - 15 x + 21

A

3 {(x - 2.5)}^{2} + 2.25

B

3 {(x - 2.5)}^{2} + 3

C

3 {(x - 2.5)}^{2} + 1.75

D

3 {(x - 2)}^{2} + 5

Question 3: Complete the square:

2 x^{2} + 7 x + 13

A

2 {(x + 1.5)}^{2} + 6.125

B

2 {(x + 1.75)}^{2} + 6.875

C

2 {(x + 1.5)}^{2} + 6.25

D

2 {(x - 1.75)}^{2} + 6.75

Question 4: Find the sum of the roots of the quadratic equation:

x^{2} - 15 x + 2.5 = 0

A

3

B

15

C

5

D

- 15

Question 5: Find the sum of the roots of the periodic equation:

3 x^{2} - 4 x + 5 = 0

A

- 4

B

2 \frac{1}{3}

C

4

D

there are no roots

Test: Quadratic Function I - Ambitious