Suppose y varies directly with x. if y =-4 when x = 8, what is the equation of direct variation?
complete the steps to write the equation of direct variation
1. start with the equation of direct variation y = kr.
2. substitute in the given values for x and y to get
3. solve for k to get
write the direct variation equation with the value found for k. the equation is

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct