McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
6. Probabilities of Mutually Exclusive Events
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Exercise 37 Page 931

Recall the formula for the slope.

J

Practice makes perfect

We are asked to find out what happens to the slope of the line p as the x-intercept approaches the origin.

First, let's calculate the slope of the line p without any changes to the x-intercept. We will assume that each square on the graph has a side length of 1.

We can see that as the graph travels from left to right, the rise — the change in y — is about 3.5. Similarly, the run (the change in x) is 2. Slope=Rise/Run ⇔ Slope=3.5/2≈ 1.8 Next, let's bring the x-intercept a bit closer to the origin.

Let's see what happened to the slope! slope=3.5/1=3.5 As we can see, the value of the slope increased. If we keep bringing the x-intercept closer to the origin, the slope will keep increasing.
Therefore, when the line p is shifted so that x-intercept approaches the origin, the slope will increase. This result corresponds with option J.