Question

Det, coordonatele punctelor de intersectie a graficului f cu axa Oy
f (x) =2x patrat +x + 2015

Answer 1

$f:R-\ \textgreater \ R, f(x) = 2x^{2} +x + 2015 \\ Gf \ intersectat\ cu \ Oy: B(0: y_0) =\ \textgreater \ f(0) = y_0 \\ f(0) = 2*0^{2}+0+2015 = 0+0+2015 = 2015 =\ \textgreater \ B(0; 2015) \ apartine \ Gf$