Question

Seja f(x)=4x-3 e 6(x)= -3x+2 determine o ponto de interseção

Answer 1

Olá,

f(x) = g(x)

4x-3 = -3x+2
4x+3x = 2+3
7x = 5
x = 5/7

f(x) = 4x-3
f(5/7) = 4(5/7)-3
f(5/7) = 20/7-3
f(5/7) = (20-21)/7
f(5/7) = -1/7

Resposta:

Elas se interceptam no ponto (x,y) = (5/7,-1/7)