Compare â cross-ply. radial symmetry. n a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other. Compare â bilateral symmetry.radial tyre.ompare â cross-ply. radial symmetry. n a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other. Compare â bilateral symmetry. radial tyre.
Direct variation problems are solved using the equation y = kx. In this case, you should use d for distance and f for force instead of x and y. Step 2: Use the information given in the problem to find the value of k. In this case, you need to find k when f = 160 and d = 5.
In the following equation y varies directly with x, and k is called the constant of variation: Another form of variation is the inverse variation which works when there is a relationship between two variables in which the product is a constant.When one variable increases the other decreases in proportion so that the product is unchanged.hen we have a variation where one quantity varies as the product of two or more other quantities we have what is called joint variation: Videolesson: State whether each equation represents a direct, inverse or joint variation: xy=7 y=xz x/y=4. 1  Pre-Algebra. 2  Algebra 1. 3  Algebra 2. 4  Geometry. 5  Sat.