Question

Aflati punctele de intersectie a graficelor functiilor: f(x)= 20x-70 g(x)= 70x+30​

Answer 1

Răspuns:

$f = 0 \: \: \: x = \frac{70}{20} = \frac{7}{2}$

$x = 0 \: \: \: y = 70 \: \: \: ( \frac{7}{2} ..70)$

$g = 0 \: \: \: x = - \frac{70}{30} = \frac{7}{3}$

$x = 0 \: \: \: y = 30 \: \: \: ( - \frac{3}{7} \: \: .. 30)$