
Desafío de Precálculo
Authored by German Espinoza
Mathematics
12th Grade
Used 1+ times

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41 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
¿Cuál es la forma canónica de la función cuadrática f(x) = 2x² - 8x + 6?
f(x) = 2(x - 3)² + 8
f(x) = 2(x - 1)² + 4
f(x) = 2(x - 2)² - 2
f(x) = 2(x + 2)² + 6
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dibuja el gráfico de la función f(x) = -x² + 4x - 3.
El gráfico de la función f(x) = -x² + 4x - 3 es una línea recta que cruza el eje y en (0, 4).
El vértice de la parábola está en (1, 0) y cruza el eje x en (0, -3) y (4, -3).
El gráfico tiene su vértice en (3, 0) y no cruza el eje y.
El gráfico de la función f(x) = -x² + 4x - 3 es una parábola que tiene su vértice en (2, 1), cruza el eje x en (1, 0) y (3, 0), y el eje y en (0, -3).
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Resuelve la ecuación cuadrática x² - 5x + 6 = 0.
x = 2, x = 3
x = 1, x = 4
x = -2, x = -3
x = 0, x = 5
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Factoriza el polinomio x³ - 3x² - 4x + 12.
(x - 2)(x - 3)(x + 2)
(x - 2)(x + 3)(x + 4)
(x - 1)(x - 4)(x + 3)
(x + 1)(x + 4)(x - 3)
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
¿Cuál es el valor de sin(30°)?
0.5
0.75
0.25
1.0
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Calcula el límite de la función f(x) = (2x² - 8)/(x - 4) cuando x tiende a 4.
16
24
8
0
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Determina si la función f(x) = 1/(x - 2) es continua en x = 2.
No, la función no es continua en x = 2.
La función tiene un límite en x = 2.
Sí, la función es continua en x = 2.
La función es continua en todos los puntos.
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