Question

The pair of equations x = 3 and y = 4 graphically represent lines which are:

Options

• coincident

• parallel

• intersecting at point (4, 3)

• intersecting at point (3, 4)

Answer 1

Intersecting at point (3, 4)

Explanation:

x = 3 is a vertical line through all points with x-coordinate 3; y = 4 is a horizontal line through all points with y-coordinate 4.

A vertical and a horizontal line meet at the single point whose coordinates are (3, 4), so the two lines intersect there.