Question 1(Multiple Choice Worth 3 points)

(Linear Functions Fit to Data MC) The depth at which a certain mammal dives,y, in feet, as related to the duration of the dive,t, in seconds, is represented by the linear model= 0.25 + 5.78t. If the dive duration is 4 seconds, what is the predicted depth of the dive?

0.649 feet 0.694 feet 22.87 feet 23.37 feet

Question 2(Multiple Choice Worth 3 points)

(Linear Functions Fit to Data MC) The scatter plot shows prize money, in thousands of dollars, for a contest over eight consecutive years. Predict the amount of prize money in year 10 of the contest.

$11,790 $20,340 $35,200 $45,900

Question 3(Multiple Choice Worth 3 points)

(Linear Functions Fit to Data LC) A student believes there is a correlation between the number of texts sent during class and GPA. The student collected data and found that the line of fit can be modeled by the equation= 3.6 0.3x. Identify and interpret the slope in this scenario.

The slope is 0.3. Starting at 3.6, the GPA will increase by 0.3 for every text sent in class. The slope is 0.3. Starting at 3.6, the GPA will decrease by 0.3 for every text sent in class. The slope is 3.6. Starting at 0.3, the GPA will increase by 3.6 for every text sent in class. The slope is 3.6. Starting at 0.3, the GP will decrease by 3.6 for every text sent in class.

Question 4(Multiple Choice Worth 3 points)

(Linear Functions Fit to Data LC) The graph shows a scatter plot for a set of data. Which of the following equations is thebestmodel for a line of fit for the data?

= 1.34x+ 21.5 = 1.34x+ 21.5 = 0.75x+ 17 = 0.75x+ 17

Question 5(Multiple Choice Worth 3 points)

(Linear Functions Fit to Data MC) The table compares the average daily temperature and ice cream sales each day.

Temperature (F)	Ice Cream Sales
58.2	$112
64.2	$135
64.3	$138
66.8	$146
68.4	$166
71.6	$180
72.7	$188
76.2	$199
77.8	$220
82.8	$280

Using technology, determine the line of fit, wherexrepresents the average daily temperature andyrepresents the total ice cream sales. Round values to the nearest tenth.

= 3.8x 109.2 = 3.8xx 109.2 = 6.5x 279.1 = 6.5x 279.1