Cuestionario: Ecuaciones, inecuaciones y funciones.
Quiz
•
Mathematics
•
8th Grade
•
Hard
Catalina Vergara
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál criterio debe cumplirse al resolver una ecuación?
Se pueden sumar números y letras.
Se utiliza el término mayor que (>) o menor que (<)
Se juntan los términos con igual factor numérico.
Se reúnen términos semejantes y se utilizan las operaciones inversas para despejar la incógnita.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cómo se expresa mediante una inecuación: "El doble de un número, más 5 unidades es menor que 225"?
x + 5 > 225
x + 5 < 225
2x + 5 < 225
2x + 5 > 225
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La inecuación que representa la expresión "los números cuyo quíntuplo aumentado en 3 unidades es menor que el triple de su sucesor" está dada por:
5x + 3 > 3 (x + 1)
5x + 3 < 3 (x + 1)
5x + 3 < 3x + 1
5x + 3 < 3x + 3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál de las siguientes alternativas define mejor una función?
Es una igualdad entre expresiones algebraicas.
Es una relación entre dos variables "x" e "y"
Se habla solo de variables dependientes.
Es una desigualdad entre expresiones algebraicas.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Si se dibuja un rectángulo de 4 cm de ancho y cuyo largo "x" es variable, ¿cuál de las siguientes funciones permite calcular su perímetro?
f(x) = x + 4
f(x) = 2x + 4
f(x) = 2x + 6
f (x) = 2x + 8
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Al resolver la ecuación: x + 2 = 2 (x - 12) + 1, ¿cuál es el valor de la incógnita?
x = 10
x = 20
x = 25
x = 30
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
x = 5
x = 4
x = 3
x = 2
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