Question

what does the y-intercept of the line tell you about the situation?the waters temperature was 80°f when antonio started heating it.the waters temperature increased 80°f per minute.the waters temperature was 100°f after 4 minutes.the waters temperature increased 5°f per minute.

Explanation:

The y-intercept occurs at \(x=0\) (elapsed time = 0 minutes, the start of heating). On the graph, this point is at \(y=80^\circ\text{F}\), representing the initial temperature when heating began. The other options describe the slope (rate of temperature increase) or a later temperature value, not the y-intercept.

Answer:

The water's temperature was 80°F when Antonio started heating it.