Question

f:R-R,f(x)=-x+3 reprezentarea grafica

Answer 1

$F:R \rightarrowR, f(x)=-x+3 \\ Gf \cap Ox : f(x)=0 \\ -x+3=0 \\ -x=0-3 \\ -x=-3 \\ x=3 ;~A(3;0)\\ Gf \cap Oy:x=0 \\ f(0)=0+3=3;~B(0;3)$