Answer:
four factors that could potentially cause a leftward shift in the demand curve for gasoline include
higher prices in gasoline
substitutes for gasoline available at lower prices
substitutes for complementary products (such as electric vehicles) being available at lower prices
changes in consumer income or purchasing power
Explanation:
higher gas prices will have a negative impact on consumer purchasing power, resulting in a decline in demand for the product
substitutes for gasoline, such as diesel or natural gas, at lower prices will cause demand for said substitutes to increase, resulting in a decline in demand for gasoline
complementary products to gasoline are gas-powered vehicles. when demand in a complementary product decreases, so will the demand in the initial product--in this case, gasoline
when consumer income declines, consumer purchasing power declines; this results in a decline in demand for products, such as gasoline
