You use a garden hose to fill a pool. If the water level rises 17 centimeters every 7 minutes and you record the data point of (21,y), what is the value of y? Use slope to justify your answer.

Step-by-step explanation:

If the water level rises 17 centimeters every 7 minutes, then (21, y)means that after, 21 minutes, it would have rise by y centimeters, using the equality postulate:

17cm = 7min

y =  21min

Cross multiply

7y = 21*17

y = 21*17/7

y = 3*17

y = 51cm

Hence the value of y is 51

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: