some investments in the stock market have earned 10% annually. At this rate, earning can be found using the formula A=p(1.10)n, where A is the total value of the investment, P is the initial value of the investment, and n is the number of years the money is invested. If $1,5oo is invested in the stock market at this annual rate of return, what is the expected total value after 18 years?
A.) $29,700.00
B.) $28,050.00
C.) $8,339.88
D.) $7,581.71
I need some help on this one, I cant figure it out. I would say what I think it is, but I don't even have a good guess.
every time i come onto this damn site and the entire answer key to the test ISNT listed, a year is taken off my life.
this is depressing, you can’t even cheat on tests anymore🙄
1. which graph best represents y=2^x+1
-graph b
2. some investments.....
-c. 13,899.79
3. graph b
4.b. 1/2 logb57-1/2 logb74
5. b. 1/2
6. b. 0.3797
7. b. 998/3
8. b. 1% exponential decay
9. b. 0.9962
10. b. logb(y^5x^4)
11. the value of k will rise or lower the whole graph of the function by k units.
I got 9 out of 10 but i fixed the one i got wrong so you will get 100%
just plug in 1500 for p, and 18 for n:
1500(1.10)^18 = 8339.88
right like connexus is unnecessarily stressful
y’all need to realize that everybody’s tests are different so therefore I don’t rely on the people who have already answered because they have different questions than you
None of the people who have listed their answers are correct
1.B
2.C - 8,339.88
3.A
4.D - logb(29-61)
5.B - 1/2
6.D - 0.4340
7.B - 998/3
8.B - 1%;exponential decay
9.A - 1.0797
10.A - logb(y^4x^3)
that username is racist bro, not cool
Jay is wrong got a 4 out of 11
for people in the future: answer was $5,559
ong i wish i did irl
AYO GUYS LOKI IS RIGHT LOL I GOT 10/10!
1. Graph b
2. 8,339.88
3. 13.3
4. Graph a
5. 1/2logb13-1/2logb73
6.1/2
7. 0.3375
8. 998/3
9. 0.0050
10. 4% exponential decay
11. 1.0797
12. logb(y5x6)
Thank you so much Steve.
4 is 1/2 logb29 - 1/2 logb61
100% correct
Which graph best represents y = 4x + 1?
1. B
2. C. $13,899.79
3. C y = log(x – 4)
4. C logb sq 29/61
5. D 1/2
7. B 0.3705
8. C 999/2
9. B. 1% expon. decay
10. D 0.949
BtS_eaTs_DogS is right
1. Graph c
2. 5,559.92
3. Graph B
4. 1/2 logb57-1/2logb74
5. 1/2
6. 0.4234
7. 998/3
8. 4% decay
9. 1.0797
10. Logb(y5x6)
You’re welcome:)
So whats the right answers??
who is wrong I got 5/11
1. B
bruh i bombed that test no cap
THIS IS SO EMBARRASSING...
if u have alg 2 honors in connexus, here are the answers for exponential and logarithmic functions unit test part 1:
1.) which graph best represents y = 4^x - 1?
C, line crosses through zero
(questions like these are easy. just use a desmos calculator)
2.) some investments in the stock market have earned 10% annualy. the total value of the investment, A, at this rate can be found using a = p(1.10)^n, where P is the initial value of the investment, and n is the number of years the money is invested. if $1,000 is invested in the stock market at this annual rate of return, what is the expected value after 18 years?
B, $5,559.92
3.) Graph the logarithmic function
y = log(x - 3)
B, line intersects x at 4
4.) Expand the logarithmic expression
logb sqr rt 57/74
B, 1/2logb 57 - 1/2logb 74
5.) What is the value of log64 8
B, 1/2
6.) Solve the exponential equation
125^(9x-2) = 150
C, 0.3375
7.) Solve log(2x+1) = 3
C, 999/2
8.) What is the percent rate of change in function y = (0.96)^x? Determine whether the function represents exponential growth or exponential decay.
A, 4%; exponential decay
9.) Use natural logarithms to solve the equation. Round to the nearest thousandth.
3e^2x + 4 = 24
D, 0.949
10.) Write the expression as a single logarithm.
4logb y + 3logb x
A, logb(y^4x^3)
100% right, i just took the test so you can trust me :P
Algebra 2B: Exponential and Logarithmic Functions Unit Test - Part 1
(This is for On-level Algebra II, not Advanced Algebra II)
1. Which graph best represents y = 4^x -1?
Ans: C - The line goes through the graph's origin (0,0).
2. Some investments in the stock market have earned 10% annually. At this rate, earnings can be found using the formula A = P(1.10)^n, where A is the total value of the investment, P is the initial value of the investment, and n is the number of years the money is invested. If $1,500 is invested in the stock market at this annual rate of return, what is the expected total value after 18 years?
Ans: C - $8,339.88
3. The pH of a liquid is a measure of how acidic or basic it is. The concentration of hydrogen ions in a liquid is labeled [H^+]. Use the formula pH = -log[H^+] to find the pH level, to the nearest tenth, of a liquid with [H^+] about 6.2 * 10^-14.
Ans: C - 13.2
4. Graph the logarithmic function. y = log(x-4)
Ans: C - The x-intercept of the line is 5.
5. Expand the logarithmic function. logb sqrt13/75
Ans: A - 1/2 logb13 -1/2 logb73
6. What is the value of log4 2?
Ans: D - 1/2
7. Solve the exponential equation. 125^8x-2 = 150
Ans: B - 0.3797
8. Solve log(2+3) = 3.
Ans: D - 997/2
9. Solve the equation. log(x+7) -logx = 3
Ans: C - 0.0070
10. What is the percent rate of change in function y = (0.98)^x? Determine whether the function represents exponential growth or exponential decay.
Ans: C - 2%; exponential decay
11. Use natural logarithms to solve the equation. Roud to the nearest thousandth. 3e^2x +4 = 24
Ans: D - 0.949
12. Write the expression as a single logarithm. 4logby +3logbx
Ans: A - logb(y^4 * x^3)
The final score is 12/12 (100%).
you can use mathway for most of the test
7.8.1
1. B(line curves to the left at(1,1)
2.c (13,899.79)
3.a(line curves on (2,-1) and (3,0) to the right)(sorry if it isn’t clear the best I could explain)
4.a (1/2 log_b(13-1/2)log_b(73))
5.b(1/2)
6.d (0.4340)
7.c(999/2)
8.a(4%;exponential decay)
9.d(0.949)
10.d(log_b(y^5x^6)
11.type an answer
These are the answer given at the end of the test and I failed:( by listening to all these peeps but it my fault so I typed the answers out to help out, please make sure your answer and the letter match up
y=4^x -1 this answer goes through 0,0
13,899.79
4.3 x 10^14 13.4
log(x-2) goes through( 3,0)
1/2logb 57- 1/2logb 74
log64(8) 1/2
.3375
(3x+2)=3 998/3
.0050
(.96)^x 4% exponential decay
1.0797
logb(y5 x6)
7.8.1 test exponential and logarithmic functions
1.b (line curves to the left at the point (1,1))
2.c(13,899.79)
3.a(line curves on (2,-1)and (3,0) to the right)(sorry if that don't make sense best i can explain it)
4.a(1/2log_b(13-1/2) log_b(73))
5.b(1/2)
6.d(0.4340)
7.c(999/2)
8.a(4%; exponential decay)
9.d(0.949)
10.d(log_b(y^5x^6))
11. type an answer
These are the answers the I got at the end of the test and I failed:(
by listening to all these people but my fault so i typed the answers out to help don't please make sure your answer and the letter match up
That’s was to the 7.8.1 test: exponential and logarithmic functions unit test by the way :p
This is the first part of the Connexus Algebra unit 7 lesson 8 unit test
1) which graph BEST represents y=4^x+1
- B or graph that goes up through +2
2) Some investments in the stock market have earned 10% annualy. the total value of the investment, A, at this rate can be found using a = p(1.10)^n, where P is the initial value of the investment, and n is the number of years the money is invested. if $1,000 is invested in the stock market at this annual rate of return, what is the expected value after 18 years?
- B or 5,559.92
3) Graph the logarithm function y=log(x-2)
- A or graph that goes down -2 and goes through +3
4) Expand the logarithm expression logb sr29/61
- C or 1/2logb 29 - 1/2logb 61
5) What is the value of log42?
- D or 1/2
6) Solve the exponential expression 125^9x-2 =150
- C or 0.3375
7) Solve log(3x+2)=3
-B or 998/3
8) What is the percent rate of change in function y = (0.99)^x? Determine whether the function represents exponential growth or exponential decay.
- B or 1% exponential decay
9) Use natural logarithms to solve the equation. Round to the nearest thousandth. 3e^2x+2=28
-A or 1.0797
10) Write the expression as a single logarithm. 4logby+3logbx
- A or logb(y^4x^3)
11 is a written question -
The value of k can affect the graph by shifting it up or down. This all depends on if the value of k is negative or positive. If its positive, the graph would move up, if negative it would move down.
(if you use this plz rewrite it)
I RLY HOPE THIS HELPS :)) -moo
unit 7 lesson 8 Exponential and Logarithmic Functions Unit Test
but my questions and answers
1. which graph BEST represents y=4^x-1 ( this question you can put it desmos)
C. The graph goes through 0,0
2. some investments in the stock market have earned 10% annualy. the total value of the investment, A, at this rate can be found using a = p(1.10)^n, where P is the initial value of the investment, and n is the number of years the money is invested. if $2,500 is invested in the stock market at this annual rate of return, what is the expected value after 18 years? (this question you just need a calculator)
C. 13,899.79 ( 2,500(1.10)^18 = 13,899.79
3. graph the logarithm function y=log(x-2) (desmos)
A. the line goes through 3,0
4. expand the logarithmic expression log b 57/74
B. 1/2 logb 57- 1/2 logb 74
5. what is the value of log base 64 of 8
B. 1/2
6. solve the exponential equation 125^7x-2=150
D. 0.4340
7. solve log(2x+1)=3
C. 999/2
8. determine whether the function represents exponential growth or exponential decay. identify the percent rate of change. y=(0.99)t
B. 1%
9. use natural logarithms to solve the equation. round to the nearest thousandth. 3e^2x +5=27
B. 0.996
10. write as a single logarithm
D. logb(y^5 x^6)
11. do it yourself
1.b
2.c
3.c
4.c
5.b
6.c
7.d
8.c
9.d
10.b
11. short answer
C
B
B
B
D
C
B
C
D
B
i took a chance on yall wtf
anyway
7.8 connexus part 1 answers are
b
b
a
c
b
d
c
c
d
b
and then it's open ended for 11
Hi I'm abt to give y'all all the answers lol
I will say, GET MATHWAY. It SLAPS and it's 100% worth it.
1. -1 graph, C (it's below the x line)
2. 8,339.88, probably C
3. Line's on the 3, B
4. ½ logb 29 - ½, you get the gist it's C
5. ½, it's B
6. 0.3375, C
7. 997/2, D
8. 1%: exponential decay, B
9. 0.949, D
10. Logb (y^5x^6), D
11. I think it's vertical? Idk don't quote me on this lol
1.) B
2.) B
3.) C
4.) B
5.) B
6.) C
7.) B
8.) C
9.) B
10.) B
Trust me. I swear these are all right!
1.B
2.C
3.B
4.C
5.C
6.B
7.B
8.D
9.A
10.B
11.A
12.A
B
C
A
B
B 1/2
B.3797
D
A 4% decay
A 1.07
B
K is the vertical shift. since it is positive. Will move the graph up k units
1B
2B
3A
4C
5C
6B
7D
8B
9B
10A
11D
12A
all 11 test answers: (Exponential and Logarithmic Functions Unit Test Part 1)
1. C
2. B
3. C
4. B
5. D
6. D
7. C
8. A
9. A
10. A
11. "the value of K will raise or lower the entire graph of the function by k units"
:)