Parallel lines are lines that never cross each other - they keep the same distance apart from each other. When two lines intersect, the opposite (X) angles are equal. On parallel lines ...

To show that two lines are parallel, they must have the same gradient. The gradient is the coefficient of 𝑥 when the equation is in the form 𝑦 = 𝑚𝑥 + 𝑐. The first equation 𝑦 ...