Question

Determinati punctul de ,,intersectie'x ' al Gf si Gg, f:R->R,f(x)=4x+4 g:R->R,g(x)=5x+3

Dau coroana​

Answer 1

Gf ∩ Gg = {B}

f(x) = g(x)

4x+4 = 5x+3

4x-5x = 3-4

-x = -1

x = 1

f(1) = 4*1+4 = 4+4 = 8

Deci B(1,8)