A and B are two sets such that A = {3, 4} B = {x, y), the cartesian product A × B is:
(3,x), (3.y), (4.x), (4,y).
{(3, x), (3, y),(4, x),(4, y)}.
{(3, x), (4, y)}.
(3x, 4y).
The sum of the three interior angles of a triangle is:
360°.
180°.
270°.
90°.
The gradient of the line 2x + 3y -15 = 0 is:
-3/2.
-2/3.
2/3.
5.
The lines with equations y = m₁x + c and y = m₂x + k are perpendicular if:
m₁m₂ = 1.
m₁m₂ = -1.
m₁ = m₂.
2m₁ = m₂.
The y-intercept of the line 3y + 4x = 12 is:
7.
3.
4.
-4.
