Question

Determinaţo coordonatele de intersecţie a draficelor funcţiilor f(x)=x-1 şi g(x) = 3x-5

Answer 1

f(x)=g(x)
x-1=3x-5
5-1=3x-x
2x=4
x=4/2=2
x=2
f(2)=2-1=1
y=1
A(2;1)

Answer 2

f(x)=g(x)
x-1=3x-5
5-1=3x-x
4=2x
x=4:2=2
f(2)=g(2)=1=>
I(2,1)