EVALUATION 31, SECOND YEAR
ALGEBRA 2 COMPLETED &
PASSED | 100% CORRECT |
LATEST 2025/2026 UPDATE
[Document subtitle]
STUDY ACE SMART
Project 1 112
MTHH 040
,Name Mat I.D. Number
Project 1
Evaluation 31
Second Year Algebra 2 (MTHH 040 059)
Be sure to include ALL pages of this project (including the directions and the
assignment) when you send the project to your teacher for grading. Don’t forget to put your name
and I.D. number at the top of this page!
This project will count for 8% of your overall grade for this course and contains a possible 100 points
total. Be sure to read all the instructions and assemble all the necessary materials before you begin.
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need them.
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Part A – Fitting Exponential Curves to Data (possible 16 points)
Cooling Tea Activity: You can use your graphing calculator to
fit an exponential curve to data and find the exponential
function.
The table at the right shows the number of degrees above room
temperature for a cup of tea after x minutes of cooling. Graph
the data. Find the best-fitting exponential function.
Step 1 Press STAT ENTER on your calculator to enter the
data in lists.
Step 2 Set up STAT PLOT for Plot 1 to draw the scatter plot.
Press 2ND Y=, select On, point graph, L1 for XList,
and L2 for YList.
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, Step 3 Find the equation for the best-fitting exponential
function. Press STAT CALC Exp Reg. The line of best
fit is estimated by f(x) = 133.458(0.942)x.
Step 4 Graph f(x). Press Y= Clear VARS 5, arrow over twice
and press ENTER to display the ExpReg results.
Press GRAPH to display both the function and scatter
plot together.
To Zoom results, Press ZOOM 9.
.
Use a graphing calculator to find the exponential function that best fits each set of data. Graph each
function. Sketch your graph.
1. (3 pts)
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