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  • Khan Academy
    If you're seeing this message, it means we're having trouble loading external resources on our website If you're behind a web filter, please make sure that the domains * kastatic org and * kasandbox org are unblocked
  • Proportional relationships - Khan Academy
    A proportional relationship is where one ratio is the same as another ratio For example, the ratio 1:2 is the same as 2:4 If you go ahead and divide both of these ratios, you'll get the same relationship 1:2
  • Interpreting graphs of proportional relationships
    - [Instructor] We are told the proportional relationship between the number of hours a business operates and its total cost of electricity is shown in the following graph, all right Which statements about the graph are true?
  • Proportional relationships: bananas (video) | Khan Academy
    In order for this to be a proportional relationship, the ratio between these two has to be constant So bananas left So I'm gonna divide the second column by the first column
  • Graphing proportional relationships: unit rate - Khan Academy
    In proportional relationships, the unit rate is the slope of the line Changes in x lead to steady changes in y when there's a proportional relationship We can use the unit rate to write and graph an equation of the line that represents the relationship Created by Sal Khan
  • Writing proportional equations from tables - Khan Academy
    Write an equation to describe the relationship between x ‍ and y ‍ Equations may include exact decimals, proper fractions, or improper fractions Please do NOT round or use mixed numbers
  • Is side length perimeter proportional? (video) | Khan Academy
    And so, once again, it becomes clear it's a proportional relationship The Perimeter is equal to a constant times the Side length, or the Perimeter divided by the Side length is equal to four So this is definitely a proportional relationship between Side length and Perimeter
  • Is side length perimeter proportional? (video) | Khan Academy
    So if the ratio of Perimeter to Side length, it's always going to be, the Perimeter is going to be four x if the Side length is x, and four x divided by x, well that's always going to be four Well this definitely meets our conditions for being a proportional relationship The ratio between Perimeter and Side length is always going to be four
  • Proportional relationships: movie tickets - Khan Academy
    Is the total price you pay proportional to the number of tickets you buy? Well, you're only buying tickets; you're not gonna be buying any popcorn, so yeah, you're gonna spend $10 50 for every ticket, so it should be proportional
  • Ratios, Proportional Relationships, Slope, etc. - Khan Academy Help Center
    Ratios are a foundation component of Algebra and are not completely understood due in part to the habit of teachers and educational material (including KA) of stating a ratio as ONE NUMBER For example, in KA Proportional Relationships where y x=3 1 it is stated that is the same as y x=3





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