https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r matematica en-us 2017-02-06 20:04:09 UTC 2024-11-10 09:54:16 UTC hello@padlet.com caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/151963473 As retas nao verticais num dado plano que passam pela origem de um referencial cartesiano nele fixado são os gráficos das funções lineares.
O coeficiente de uma função linear , a , é igual à ordenada do ponto do gráfico com abcissa igual a 1 é igual à constante de proporcionalidade entre as ordenadas e as abcissas dos pontos da reta .]]> 2017-02-06 20:13:18 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/151963473 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/151964477 As retas nao verticais são os gráficos das funções afins.
Dada uma reta de equação y=ax +b ,designa-se a por declive da reta e b por ordenada na origem n]]> 2017-02-06 20:16:34 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/151964477 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/151966175 Duas retas nao verticais são paralelas quando (e apenas quando ) tem o mesmo declive .
O declive a,de uma reta r de equação y=ax+b ,determina -se por dois pontos A e B ,de coordenada (Xa,Ya) e (Xb,Yb) é dado por :
A= Yb-Ya a dividir por Xb -Xa 
Os pontos do plano com abcissa igual a c (sendo c um número real ) são os pontos da reta vertical que passa pelo ponto de coordenadas (c,0)
A equação da reta é X=c]]> 2017-02-06 20:21:47 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/151966175 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152278193 Identifica a representação gráfica da função linear definida pela expressão analítica f(x)=-um quartoX
R:C

]]> 2017-02-07 19:40:09 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152278193 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152278816 Para efetuar chamadas do seu telemóvel para uma certa rede, o Gerson ,por cada segundo de duração de chamada ,0,5 cêntimos 
O Gerson fez uma chamada para essa rede e gastou todo o seu dinheiro ,que era 80 cêntimos .Qual dos gráficos seguintes representa a situação?
R:B]]> 2017-02-07 19:41:48 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152278816 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152279761 O declive da reta representada no gráfico ao lado é :
A)2 
B)-2
C)0,5
D)-0,5
R:D

]]> 2017-02-07 19:44:12 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152279761 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152280430 Qual das retas representadas nos gráficos seguintes contém o ponto de coordenadas A(-2,1) e tem declive 2?
R:A

]]> 2017-02-07 19:45:48 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152280430 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152281251 O declive da reta não vertical representada na figura ,que passa nos pontos de coordenadas (0,1) e (1,-2), é :
A)-2
B)-1
C)-3
D)2
R:C]]> 2017-02-07 19:48:15 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152281251 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152281984 O ponto P,de coordenadas (-1,2) é o ponto de interseção das retas de equações 
A) X=-1 e Y=-2
B)X=-1 e Y=2
C)X=1 E Y=-2
D)X=1 e Y=2
R:B]]> 2017-02-07 19:50:02 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152281984 caetana_ribeiro https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152282895 Considera a reta definida pela equação x=0.Uma reta paralela a esta poderá ter como equação:
A)Y=0
B)Y=2
C)Y=-1
D)Y=2
R:D]]> 2017-02-07 19:52:34 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/152282895 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172917670 2017-05-20 11:41:20 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172917670 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172917717 2017-05-20 11:42:32 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172917717 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172917830 2017-05-20 11:45:46 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172917830 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918145 2017-05-20 11:54:20 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918145 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918162 2017-05-20 11:54:42 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918162 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918332 2017-05-20 11:56:48 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918332 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918354 2017-05-20 11:57:06 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172918354 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172924758 2017-05-20 14:04:08 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172924758 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172924778 2017-05-20 14:04:28 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172924778 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925162 2017-05-20 14:12:03 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925162 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925194 2017-05-20 14:12:40 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925194 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925200 2017-05-20 14:12:49 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925200 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925209 2017-05-20 14:13:04 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925209 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925210 2017-05-20 14:13:06 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172925210 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960064 2017-05-21 07:13:37 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960064 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960076 2017-05-21 07:13:58 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960076 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960368 2017-05-21 07:21:32 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960368 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960389 2017-05-21 07:22:11 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960389 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960405 2017-05-21 07:22:42 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960405 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960419 2017-05-21 07:23:09 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960419 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960476 2017-05-21 07:24:56 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960476 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960489 2017-05-21 07:25:22 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960489 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960529 2017-05-21 07:25:56 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960529 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960543 2017-05-21 07:26:16 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960543 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960555 2017-05-21 07:26:37 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960555 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960644 2017-05-21 07:27:38 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960644 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960667 2017-05-21 07:28:24 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960667 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960678 2017-05-21 07:28:47 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960678 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960692 2017-05-21 07:29:13 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960692 https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960737 2017-05-21 07:30:37 UTC https://padlet.com/caetana_ribeiro/tuoj9rtm5n6r/wish/172960737