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Equazioni di Secondo Grado

Authored by Alessio Piscopo

Mathematics

9th Grade

8 Questions

Used 1+ times

Equazioni di Secondo Grado
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual è la forma generale di un'equazione quadratica?

ax² + b + c = 0

ax² - bx + c = 0

a²x + bx + c = 0

ax² + bx + c = 0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identifica i coefficienti nell'equazione 2x² - 4x + 1 = 0.

1, -4, 2

2, -3, 1

3, -4, 0

2, -4, 1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcola il discriminante dell'equazione x² + 6x + 9 = 0.

9

6

0

-3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Trova le radici dell'equazione 3x² - 12x = 0.

x = 0, x = 4

x = -4, x = 0

x = 1, x = 3

x = 2, x = 6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual è il vertice della parabola rappresentata da y = x² - 4x + 3?

(0, 3)

(1, -1)

(2, -2)

(3, 0)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Applica la formula quadratica per risolvere 2x² + 3x - 5 = 0.

x1 = 1, x2 = -2.5

x1 = 0, x2 = 5

x1 = 2, x2 = -1

x1 = -1, x2 = 2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Disegna il grafico della parabola y = -x² + 2x + 1.

The graph has x-intercepts at (0, 1) and (2, 0).

The graph of the parabola y = -x² + 2x + 1 is an upward-opening curve with vertex at (1, -2).

The graph of the parabola y = -x² + 2x + 1 is a downward-opening curve with vertex at (1, 2), x-intercept at (1, 0), and y-intercept at (0, 1).

The y-intercept of the graph is at (1, 0).

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