Question

Graph with a line going through points zero comma two point five and four comma two point five.

Select the equation of the line that passes through the point (3, −1) and is parallel to the line on the graph.

Answer 1

(0,2.5) (4,2.5)

m = 0 so line is horizontal.

This means the gradient of the parallel line is also 0.

The equation of the line is therefore y = -1.