In Exercises 7-9, identify the initial amount a and the rate of decay (as a percent) of the exponential function. Evaluate the function when
t = 3. Round your answer to the nearest tenth.
7. y = 12(0.65) 8. y = 360(0.1) 9. h(t) = 550(0.4)
In Exercises 10 and 11, write a function that represents the situation.
10. A school population of 1200 decreases by 6% each year.
11. A stock valued at $49.50 decreases in value by 7% each year.
In Exercises 12 and 13, determine whether the table represents an exponential
growth function, an exponential decay function, or neither. Write the equation.
12.
13.
xo
1
2
3
х
0
1
2.
3
y 412 36 108
y
200
100 5025
In Exercises 14-16, determine whether the function represents exponential growth
or exponential decay. Identify the percent rate of change.
14. y = 3(0.4)
15. y = 18(1.3)
16. y = 41(1.07)

Which statement best describes the polynomial

Part one: measurements 1. measure your own height and arm span (from finger-tip to finger-tip) in inches. you will likely need some from a parent, guardian, or sibling to get accurate measurements. record your measurements on the "data record" document. use the "data record" to you complete part two of this project. name relationship to student x height in inches y arm span in inches archie dad 72 72 ginelle mom 65 66 sarah sister 64 65 meleah sister 66 3/4 67 rachel sister 53 1/2 53 emily auntie 66 1/2 66 hannah myself 66 1/2 69 part two: representation of data with plots 1. using graphing software of your choice, create a scatter plot of your data. predict the line of best fit, and sketch it on your graph. part three: the line of best fit include your scatter plot and the answers to the following questions in your word processing document 1. 1. which variable did you plot on the x-axis, and which variable did you plot on the y-axis? explain why you assigned the variables in that way. 2. write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. show all your work, including the points used to determine the slope and how the equation was determined. 3. what does the slope of the line represent within the context of your graph? what does the y-intercept represent? 5. use the line of best fit to you to describe the data correlation.

Zroms according to the synthetic division below, which of the following statements are true? check all that apply. 352 -2 6 -12 12 2 4 0 i a. (x-3) is a factor of 2x2 - 2x - 12. b. the number 3 is a root of f(x) = 2x2 - 2x - 12. c. (2x2 - 2x - 12) = (x + 3) = (2x + 4) d. (2x2 - 2x-12) - (x-3) = (2x + 4) e. (x+3) is a factor of 2x2 - 2x - 12. o f. the number -3 is a root of fx) = 2x2 - 2x - 12. previous