Steel is a key input for making cars. If the price of steel rises, raising automakers' production costs, what happens to the supply curve for cars?

1. Steel is an input cost for cars, a supply determinant separate from the price of cars themselves. 2. Higher input costs lower profit at any given selling price for cars. 3. Lower profit at every price makes automakers want to supply fewer cars at every price. 4. A curve showing a lower quantity supplied at every price has shifted to the left. _Source: OpenStax Principles of Macroeconomics for AP Courses (CC BY 4.0), Ch 3 "Demand and Supply", section 3.2 | Shifts in Demand and Supply for Goods and Services_