Question

The graph shows the number of weeks of practice () and the number of

shote missed in a free throw drill (). The equation of the trend line that best
fits the data is y- +6. Predict the number of missed shots after 8
weeks of practice.

A.3

B.2

C.4

D.5

Answer 1

B. 2

Explanation:

You want the predicted number of missed shots after 8 weeks if the trend line equation is ...

y = -1/2x +6

Prediction

Using x=8 in the given equation, we find the prediction to be ...

y = -1/2(8) +6 = -4 +6 = 2

The number of missed shots is predicted to be 2.

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Additional comment

We can see that the trend line (red) goes through the point (8, 2). That tells you the prediction is 2 missed shots at 8 weeks of practice.

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