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Uji Pemahaman Persamaan Kuadrat

Authored by Rahmatia, S.Pd.

Mathematics

9th Grade

Uji Pemahaman Persamaan Kuadrat
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Selesaikan persamaan kuadrat berikut: x² - 5x + 6 = 0.

x = 1, x = 4

x = 0, x = 6

x = 2, x = 3

x = -2, x = -3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gambarlah grafik fungsi kuadrat y = x² - 4x + 3.

Graph the function y = x² - 2x + 1 with vertex at (1, 0)

Graph the function y = x² + 4x + 3 with vertex at (2, 7)

Graph the function y = x² - 4x + 5 with vertex at (2, 1)

Graph the quadratic function y = x² - 4x + 3 with vertex at (2, -1), x-intercepts at (1, 0) and (3, 0), and y-intercept at (0, 3).

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan akar-akar dari persamaan kuadrat 2x² + 3x - 5 = 0.

x1 = 0, x2 = -5

x1 = 1.5, x2 = -3

x1 = 1, x2 = -2.5

x1 = 2, x2 = -1.5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gunakan rumus kuadrat untuk menyelesaikan 3x² - 12x + 9 = 0.

x = 3 dan x = 1

x = 0 dan x = 4

x = -1 dan x = 6

x = 2 dan x = 5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hitung diskriminan dari persamaan kuadrat x² + 2x + 1 = 0.

0

2

-1

1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Selesaikan persamaan kuadrat x² + 6x + 8 = 0 dan analisis akar-akar yang diperoleh.

Akar-akar dari persamaan kuadrat adalah x₁ = 2 dan x₂ = 4.

Akar-akar dari persamaan kuadrat adalah x₁ = -3 dan x₂ = -5.

Akar-akar dari persamaan kuadrat adalah x₁ = -1 dan x₂ = -8.

Akar-akar dari persamaan kuadrat adalah x₁ = -2 dan x₂ = -4.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gambarlah grafik fungsi kuadrat y = -x² + 2x + 3.

The y-intercept is at (0, 2) and x-intercepts at (1, 0) and (2, 0).

The graph is an upward-opening parabola with vertex at (1, 2).

The graph of the function is a downward-opening parabola with vertex at (1, 4), y-intercept at (0, 3), and x-intercepts at (-1, 0) and (3, 0).

The vertex of the parabola is at (0, 3) with no x-intercepts.

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