Question

ME AJUDEM PF, URGENTE (dou 50 pontos)​

Answer 1

Resposta:

1.

As funções são compostas por:

y = ax + b; sendo a o coeficiente angular e b o coeficiente linear.

Portanto temos:

f(x) = 2x - 3:

coeficiente angular = 2

coeficiente linear = -3

g(x) = x + 2

coeficiente angular = 1

coeficiente linear = 2

y = - x + 7

coeficiente angular = -1

coeficiente linear = 7

y = - 3x + 5

coeficiente angular = -3

coeficiente linear = 5

h(x) = 2x

coeficiente angular = 2

coeficiente linear = 0

2.

a)

$f(0) = 5 . 0 - 1\\\\f(0) = 0 - 1\\\\f(0) = -1$

b)

$f(1) = 5 . 1 - 1\\\\f(1) = 5 - 1\\\\f(1) = 4$

c)

$f(-1) = 5 . (-1) - 1\\\\f(-1) = -5 - 1\\\\f(-1) = -6$

d)

$f(0) = 5 . 0 - 1\\\\f(0) = 0 - 1\\\\f(0) = -1$

3.

a)

f(x) = ax + b

f(x) = 2x + 1

coeficiente angular = 2

b)

$f(1) = 2 . 1 + 1\\\\f(1) = 2 + 1\\\\f(1) = 3$

c)

$f(2) = 2 . 2 + 1\\\\f(2) = 4 + 1 \\\\f(2) = 5$