2. Then add heat. After 24 hours, use heat to dilate the blood vessels and improve circulation in the area. Warm compresses will help speed up the bodys natural mechanisms for removing the blood in the bruise, says Randy Wexler, M.D.
where k is the constant of variation. Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x , and y = 6 when x = 2 , the constant of variation is k = = 3 . Thus, the equation describing this direct variation is y = 3x .
A reflection of a function flips the graph over the x-axis or the y-axis. The blue curve shows a reflection of the the orange curve's function. The blue curve shows a reflection of the orange curve's function. Transform a function and learn how changing the function equation changes the shape of the graph.