Question

Diego graphed the lines y=3x - 7 and y = 3x + 2. He then said there is no solution to this system. Diego is correct, how can you explain to Diego that he did not have to graph the lines to know there would be no solution

Answer 1

Because they are parallel

Explanation:

Since these lines both have a slope of 3, they are parallel and will never touch, therefore they have no solutions.