Question

what does the y-intercept of the line tell you about the situation? ron plans to add 10 new solar panels. each new solar panel will produce 150 watts of energy. each new solar panel will produce 600 watts of energy. the solar panels already on the garage produce 600 watts of energy.

Explanation:

The y - intercept of a linear model representing the energy production from solar panels (where the number of new solar panels is the independent variable, say \(x\), and total energy production is the dependent variable \(y\)) occurs when \(x = 0\) (no new solar panels added). So it represents the energy production from the solar panels that were already there. Among the options, "The solar panels already on the garage produce 600 watts of energy" matches this interpretation of the y - intercept. The other options: "Ron plans to add 10 new solar panels" is about the number of panels to add (related to the domain or a specific \(x\) value), "Each new solar panel will produce 150 watts of energy" and "Each new solar panel will produce 600 watts of energy" are about the slope (rate of change of energy with respect to the number of new panels).

Answer:

The solar panels already on the garage produce 600 watts of energy.