Page 120 - Math Course 1 (Book 1)

Algebra: Scatter Plots

Let the vertical axis represent degrees Fahrenheit. y
Graph the data. B.

30
B. Does the scatter plot show a relationship
between °C and °F? 25

Explain. Number of Babies 20
15
Yes, a positive relationship 10
Answer is shown. As °C increase,
so do °F. 5

C. Predict the Fahrenheit temperature for 35 °C. Apr Jan Mar Feb X
Aug May July June
By looking at the pattern on Month
the graph, we can predict C. y
Answer that the Fahrenheit
temperature corresponding 30
Number of Babies 15
to 35°C would be about 95 25
degrees. 20

Your Turn! 10
5

Construct a Scatter Plot Jan Mar May July X
Month
BIRTH STATISTICS The table shows y
the number of babies born at Central Hospital B.
during the past eight months. Make a scatter 30
plot of the data. 25

Year Jan. Feb. Mar. Apr. Number of Babies 20
15
Number of 12 21 15 9 10
Babies
5
y
A. Apr Jan Mar Feb
60 Aug May July June X
Number of Babies 40
50
Month

30
20
10 Answer

Jan Mar May July
Month X

112