11. Calcular o ponto de intersecção das retas e representá-las num mesmo sistema de coordenadas:?

a. y = 2x + 5 e y = 3x

b. y = 5 e y = 4x, x > 0

c. f(x) = 1 + x e f(x) = 4

d. f(x) = 3 e f(x) = 2x + 1

e. f(x) = 1/2x e f(x) = 2x – 3

f. f(x) = 4 – x e f(x) = 2x – 2 e f(x) = x + 1

g. f(x) = 4x e f(x) = 8 – 4x e f(x) = 2x – 4

h. f(x) = 3x + 4 e f(x) = 2x + 6

socorroo

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