Line of Best Fit

Front

What is a line of best fit used for?

Back

To make predictions

Front

What is the line of best fit? Options: f(x)= 5x+1.82, cannot be determined, f(x)= 1.82x + 5.02, f(x)= 1.1x + 4.2

Back

f(x)= 1.82x + 5.02

Front

What type of association does this graph show? Options: Positive, negative, none, all of the above

Back

none

Front

Which sentence describes the relationship shown on this scatter plot?

Back

As the time spent training increases, the time to run 100 m decreases.

Front

Which sentence describes the relationship shown on this scatterplot? Options: As the temperature decreases, the visitors increase. , As the temperature increases, the number of visitors increases. , As the visitors increase, the temperature decreases. , No correlation

Back

As the temperature increases, the number of visitors increases. 

Front

Table comparing foot length to height in cm. Calculate line of best fit.

Back

f(x) = 5.57x + 25.05

Front

Using the line of best fit, how tall would the tree be 30 years after it was planted?

Back

37 feet

Front

Caroline weighs her new puppy every month to see how much it has grown. If age is a and weight is W, which of these is the correct equation for the line of best fit? Options: W = 3.6 + 8.9, W = 3.6a + 8.9, a = 8.9W + 3.6, W = 8.9a + 3.6

Back

W = 3.6a + 8.9

Front

The table shows the height and shoe sizes of several students. Use the line of best fit to predict a student's height if they wear a size 7 shoe.

Back

59 inches

Front

Find line of best fit using calculator through these points: (0,0), (1,2), (3,5), (6,7).

Back

y=1.14x+.64