Choose the correct answer below. Reasoning The scatter plot shows

the average height of people ages

2-12 in a certain country. Which of the

lines shown is a reasonable trend line

for the scatter plot? Use paper and

pencil. How can a scatter plot have

more than one linear model? How do

you decide which model to use?

Explain your reasoning.

Average Heights in Country X

a

o line m

oline g

O line k

O lines

60-

m

50-

9

Average Height (inches)

40-

30

20

10

12

14

4

6

0

N

8

Age (years)

No

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)