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Revisao 1 ano matematica sobre contas impossiveis de serem feitas
A soma dos algarismos do denominador da fraçao geratriz da dizima periodica 7,12121 é: a)18 b)9 c)6 d)10 e)nd?
2-o ponto de intersecçao da reta definida por f(x)=2x-8 e o eixo das abcsissas é :
a)(0,2) b)(-4,0) c)(4,0) d)(2,0) e)(0,4) ????
3-uma reta passa pelos pontosA(1,2) e B(2,3).marque a alternativa falsa:
A)ela é crescente
b)a funçao que determina a reta é f(x)=x+1
c)o ponto p(5,4) pertence a ela
d)o seu ponto de intersecçao com o eixo das ordenadas é k(0,1)
e)ela corta o eixo y.
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