Save guides, add subjects and pick up where you left off with your BBC account. The graphs above, \(y = 2x + 1\) and \(y = 2x - 2\) have the same gradient of 2. The lines are parallel. State the ...

Two lines will be perpendicular if the product close product The answer when two or more numbers are multiplied together, eg the product of 4 and 15 is 60. of their gradients is -1.