Show what you know: Scatter Plots and Lines of Best Fit A homeowner collects data about the amount of oil A, in gallons, used to heat the house per month
for 5 months and
the average monthly temperature t, in degrees Fahrenheit, for those months. The scatter plot shows the data. The
function A (t) = -1.4t + 96 best fits these data.
1 A(t)
70
60
50
(suo jeb) posn 110
340
30
20
.
10
10 20 30 40 50 60 70 $
Temperature (°F)
Use the function A(t)to determine which of the following statements are true. Select all that apply.
uld use about 82 gallons of oil to heat the house for a month with an average temperature of 10 °F