Aline that intersects one of two parallel lines intersects the other also always sometimes never

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?

Create a varationof radical symbol y=a a (x-h)+k function graph the parent function with all 4 varations question: how did each variable change affect the graph? use (desmos) graphing to graph the it