Look at the graph down below. a) Circle the data points for the words “idea” and “kangaroo.”
Hint: a vowel is a, e, i, o, u, and sometimes y.

b) Add a data point for the word “average.”

c) In English, longer words tend to have more vowels than shorter words.
How does the scatter plot show this?

d) Cross out two data points that show that a shorter word can have more vowels than a
longer word. Explain how the points you chose show this.

Find two English words that satisfy the data you crossed out:

and

b

step-by-step explanation:

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.