Read the instructions please.

9514 1404 393

Step-by-step explanation:

1. The equation x-y = 2/3 has no integer solutions, so is difficult to graph accurately.

 The equation 4x -3y = -33 transforms to y = 4/3x +11, which is easy enough to graph, but has a slope so similar to the first equation that the graph is difficult to scale in a useful way. (The point of intersection is off the grid for the usual scaling we might choose.)

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2. The point of intersection is (x, y) = (-35, -35 2/3).

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3. As mentioned in part 1, the challenge is finding a useful scale and plotting points and lines accurately. (A graphing calculator helps immensely.)

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4. There are many ways to solve a system of linear equations. Here, "elimination" works well.

Rewrite the first equation to 3x -3y = 2. Subtract that from the second equation:

  (4x -3y) -(3x -3y) = (-33) -(2)

  x = -35

  y = -35 -2/3 = -35 2/3 . . . . . from the first equation

The exact solution is (x, y) = (-35, -35 2/3).

the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05