Question

determina coordonatele punctelor in care dreapta de ecuatie x-2y+1=0 intersecteza axele

Answer 1

Răspuns:

Explicație pas cu pas:

x-2y+1 = 0  <=> y = (x+1)/2

∩ Oy <=> x = 0 => y = 1/2  => A(0 , 1/2)

∩ Ox <=> y = 0 => (x+1)/2 = 0 => x+1 = 0 => x = -1 => B(-1 , 0)

Answer 2

Răspuns:

Explicație pas cu pas:

∩Ox..y=0...........x+1=0.......x=-1...........(-1;0)

∩Oy.....x=0........1=2y.........y=1/2.........(0;1/2)

as simple as that!!

extra

daca ai vreo dificultate, o 'tragi " in clas a 8-a

2y=x+1

y=x/2+1/2