https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/v/introduction-proportional-relationships 2023-01-16T05:52:00.993148443Z Introduction to proportional relationships Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality". video https://cdn.kastatic.org/googleusercontent/QFYWzosaSYGPT31AcLupS8ls6T7KQNlCyZZlbnNc7nmhptP0bZvw7Ul_5N-Hdoy8WOAwoBbWwK7kfbZ_2l89F_o Introduction to proportional relationships Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality". https://cdn.kastatic.org/ka-youtube-converted/l-HtxhClZ-0.mp4/l-HtxhClZ-0.mp4 312 Constant of proportionality https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/v/identifying-constant-of-proportionality-graphically 2023-11-15T22:05:30.45543254Z Identifying constant of proportionality graphically The video explains the concept of the constant of proportionality in graphs. It shows how to calculate it using the formula Y = KX or Y/X = K, where K is the constant. It also demonstrates how to identify lines with specific constants on a graph. video https://cdn.kastatic.org/googleusercontent/_UfEmXofjS5SuaEw_pmeJrZ6G3g0LOFR2ZFA0Pu1KJNmr76tqxVL0H1m5dY-N6kIoonTqQxs25RW-9eSoTQGMaQb Identifying constant of proportionality graphically The video explains the concept of the constant of proportionality in graphs. It shows how to calculate it using the formula Y = KX or Y/X = K, where K is the constant. It also demonstrates how to identify lines with specific constants on a graph. https://cdn.kastatic.org/ka-youtube-converted/jihKUWH4Hfc.mp4/jihKUWH4Hfc.mp4 277 Constant of proportionality https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/v/constant-of-proportionality-from-graph 2023-11-15T22:05:30.45543254Z Constant of proportionality from graph In this lesson, we learn about the constant of proportionality in a graph. It's the number we multiply by x to get y. In our example, when x increases, y increases three times as much. So, our constant of proportionality is 3. video https://cdn.kastatic.org/googleusercontent/Oa8jSjyG-T539ycjwPEcyWI7g8QbpxxDLLBzlbNXWa7-pe8Y1yezoNdD5jJlqZaw3z1MNfbr_YC-VT_cX5TvzZFJ Constant of proportionality from graph In this lesson, we learn about the constant of proportionality in a graph. It's the number we multiply by x to get y. In our example, when x increases, y increases three times as much. So, our constant of proportionality is 3. https://cdn.kastatic.org/ka-youtube-converted/n_UHN9t3cNg.mp4/n_UHN9t3cNg.mp4 110 Constant of proportionality https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/e/constant-of-proportionality-from-graphs 2026-04-15T15:50:42.833303222Z Constant of proportionality from graphs Practice identifying the constant of proportionality from graphs. Lindsay exercise https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/v/identifying-the-constant-of-proportionality 2023-11-15T22:05:30.45543254Z Identifying the constant of proportionality from equation The constant of proportionality is a key concept in math. It's the number that we multiply one variable by to get another in a proportional relationship. This can be seen in everyday situations like cooking or in equations. video https://cdn.kastatic.org/googleusercontent/AhRTQwxYrUfGER83nlGGjfkEbkMaf77OUzZmQcsYL75Hi2KbvuQKLrS3LdmH9osZXuBYsX7vNMbulvLovmZrESM Identifying the constant of proportionality from equation The constant of proportionality is a key concept in math. It's the number that we multiply one variable by to get another in a proportional relationship. This can be seen in everyday situations like cooking or in equations. https://cdn.kastatic.org/ka-youtube-converted/rj7DweP8e58.mp4/rj7DweP8e58.mp4 231 Constant of proportionality https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/v/example-identifying-a-proportional-relatioship-given-a-constant-of-proportionality 2022-10-06T11:16:59.256015857Z Constant of proportionality from tables Identifying proportionality constants by looking at tables of values. video https://cdn.kastatic.org/googleusercontent/gHcfjy1AtDHtp2HNzU9eShRhLitaKNoxZetLuW255pnFiuYJL6x-6O9-m3eAhC-RRfu5pSIHaKi5tG6zudy4bq8 Constant of proportionality from tables Identifying proportionality constants by looking at tables of values. https://cdn.kastatic.org/ka-youtube-converted/rzDQ_ZIpi84.mp4/rzDQ_ZIpi84.mp4 154 Constant of proportionality https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/v/proportionality-constant-from-table 2021-06-30T17:51:06Z Constant of proportionality from table (with equations) Sal identifies the constant of proportionality from table. video https://cdn.kastatic.org/googleusercontent/63GNoFU80M-0tSmCFrrDgWBD6xo5AkTESgwiCMvsW8jPSL2XBlx7Tbv4Q5lA2xcInrvZ1uvJQhQqxNBcxwsSqZw Constant of proportionality from table (with equations) Sal identifies the constant of proportionality from table. https://cdn.kastatic.org/ka-youtube-converted/5Ilo0pw3iL8.mp4/5Ilo0pw3iL8.mp4 105 Constant of proportionality https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/7th-constant-of-proportionality/e/constant-of-proportionality-from-tables 2026-03-05T16:00:37.302781114Z Constant of proportionality from tables (with equations) Use the equation, y=rx to identify r from a table of values. Lindsay exercise