y = a + bx. where y is the dependent variable and x is the independent variable. In this case, the slope is equal to b and a is the intercept. When plotted on a graph, y is determined by the value of x. Regression equations are charted as a line and are important in calculating economic data and stock prices.
I just took a prom dress to be dry cleaned and they are charging $25.00.
1 Most prom dress alterations will cost anywhere from as little as $5 to as much as $95. 2  Most of the time, it is best to budget $30 to $65 but no more than $100. 3  For example, a hem, which can be either done high or low, can cost $20 to $40 per layer. If the dress is strapless and you need straps to be added, the cost can be $10 to $20 depending on the material and width of the straps. 2  If a small hook has to be added to keep the train up while dancing, this can cost $5 to $10 to add the piece.