The water level in a reservoir is changing at a rate described by the equation 4x−3y=15, where x represents the time in years and y represents height in inches. What is the rate of change of water in the reservoir? 34 inch decrease per year
3 fourths inch decrease per year

34 inch increase per year
3 fourths inch increase per year

43 inch increase per year
4 thirds inch increase per year

43 inch decrease per year

Step-by-step explanation:4/3 inch increase per year

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step-by-step explanation:

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: