Mathematics for IGCSE & O level - Inequalities (Section 2 - No. 27)
When plotting the line 3x + 4y = 12, choosing x=0 and then y=0 give the points?
(0, 3) and (4,0)
(3, 0) and (0,4)
(0, 4) and (3,0)
(4,3) and (0,0)
คำอธิบาย
Solve for y, so 4y=12, y=3, and if y=0 then 3x=12, therefore x=4.