Sustituye el valor de cada variable y determina el valor numérico de la expresión algebraica: –2x + 3y – 1, si x = –2, y = 1
EXAMEN DE MATEMATICA 8 GRADO

Quiz
•
Mathematics
•
8th Grade
•
Hard

Ingrid Esmeralda Guardado Mejia
Used 12+ times
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16 questions
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1.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Efectúa la siguiente operación con polinomios: 2(a – 1) – 3(–a + 2)
5a - 8
- 1a + 4
3.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
Resuelve el sistemas de ecuaciones:
2x – 3y = 8
3x + 2y = –1
4.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
Resuelve el sistemas de ecuaciones:
3x – 2y = 8
x = 2y + 4
5.
DRAW QUESTION
15 mins • 1 pt
Traza la gráfica de la función y = 2/3 x – 1
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Encuentra la ecuación de la función cuya gráfica tiene pendiente –2 y pasa por el punto (2, –1).
y=-2x
y=-2x+3
7.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
La suma de los ángulos internos de un polígono es 720°, encuentra el número de vértices.
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