The two examples above illustrate the two forms of potential energy to be discussed in this course - gravitational potential energy and elastic potential energy. Gravitational potential energy is the energy stored in an object as the result of its vertical position or height.

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A proportional relationship between x and y can be modeled by the equation y = kx. Example 1 : Determine the constant of proportionality for each table and also write an equation for the relationship between x and y. Solution : To find the constant of proportionality, we have to divide y by x. Ratio of y to x : 30/3 = 10.

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Enter the FIRST person's relationship to the shared relative. For example, the grandchild of the shared relative. Enter the SECOND person's relationship to the shared relative. For example, the great grandchild of the shared relative. In our example above, the two people would be first cousins once-removed.

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How to tell if a relationship is proportional. When graphed, a line is formed. The graph starts at origin (0,0) You must multiply x by some number to get y (y=kx) y/x is the same for all data points of the problem. Example. Proportional Relationship – All medium pizzas $6 # of Pizzas (x) Process Cost (y) 1 1(6) 6 2 2(6) 12 3 3(6) 18 4 4(6) 24

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A proportional relationship is any relationship between things that changes together. An example of a direct proportional relationship would be buying an item at the grocery store.

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Example The table shows the relationship between the money that Leo earns and the number of lawns that he mows. Is the relationship proportional? The ratios of the money earned to the number of lawns all simplify to y, or 5, so the relationship is proportional.