Use the following information to answer questions 23-24.

When Michelle defrosts frozen hamburger in her family's microwave, she enters the hamburger's weight, to the nearest 0.1 pound, and the microwave automatically sets the defrost time. Michelle defrosts 3 different amounts of frozen hamburger in her family's microwave and wonders if there is a relationship between the weights and corresponding microwave defrost times. She graphs the 3 weights and corresponding microwave defrost times in the standard (x,y) coordinate plane, as shown below, and notices a linear relationship between these 3 points. She finds that an equation of the line through these 3 points is y = 420x + 10.