Which Number in the following picture, identifies a saddle?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Acompany produces items in small batches. the machinery needs to warm up before the items can be produced. the scatterplot shows the time needed to produce batches of different numbers of items. based on the line of best fit, which of these statements is true?

Based on the information in the graph, what can you conclude about humans in the world in general?