ACTIVIDADES
-8
1.
2.
3.
4.
5.
Comprueba que la función f...
Mathematics, 04.05.2021 01:00 shateece
ACTIVIDADES
-8
1.
2.
3.
4.
5.
Comprueba que la función f(x) = 2(x+ 3) — 5(x+ 1) es li-
neal. Calcula la pendiente y la ordenada en el origen.
Representa la recta que pasa por los puntos A(l, 4) y
B(3, 0). Calcula su pendiente. ¿Es creciente?
Asocia en tu cuaderno cada gráfica con su fórmula.
a)
6. Asocia en tu cuaderno cada tabla con su función lineal
correspondiente. Indica la pendiente y la ordenada en el
origen. ¿Cuales son constantes? ¿Cuales son de propor-
cionalidad directa?
a)
x
b)
x
-4
-1
-4
14
o
10
4
1
4
6
8
2
8
2
c)
x
d)
x
-4
6
-4
-3
6
5
4
6
4
13
8
6
8
21
1
A. f(x)
4
D. = 10 -x
A. y=2
C. y=-2x+2
7.
En esta tabla de proporcionalidad directa hay dos errores
en los valores de y. Encuéntralos y corrígelos.
Calcula las imágenes de —1, 10 y —1,5 en la función de
proporcionalidad directa f(x)
- -1,5x.
Si g(x) es una función de proporcionalidad directa, com-
pleta la siguiente tabla en tu cuaderno.
x
2
3
5
7
8
12
12
16,8
15
21
x
g(x)
-7,5
1
4
10
8,5
smSaviadigital. com
Practica con funciones lineales.
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Answers: 1
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