Asapin a salsa recipe, the number of tomatoes added is proportional to the amount of salt added. this graph shows the relationship. what is the unit rate for the number of tomatoes to the tsp of salt?

Since the equation is y=3x and tomatoes is on the y axis and salt is on the y axis we can see that it takes 1 tomatoe for every 3tsp of salt. The questions asked for for the unit rate so we just flip the equation to 1/3y=x, giving us a 1/3 unit rate.

This is also know as solving for the slope of the y variable.