1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denis-greek [22]
3 years ago
13

In any function, f(x) = a(x-h)n + k , a negative leading coefficient means the graph is reflected. True or False

Mathematics
1 answer:
Temka [501]3 years ago
7 0

Answer:

True

Step-by-step explanation:

For any function of the form f(x) = a(x-h) ^ n + k the coefficient a produces a reflection of the function whenever a.

We can verify it in the following way.

Take, for example, the function:

f(x) = 2(x-1) ^ 3

Now let's make f(2)

f(2) = 2(2-1)^3\\\\f(2) = 2

Now let's f(2) in the following function:

f(x) = -2(x-1)^3

We have:

f(2) = -2(2-1)^3\\\\f(2) = -2

We can see then that the function was reflected in the axis -y by placing a negative coefficient a.

You can see more examples in the attached images

Therefore we can conclude that the statement is true.

You might be interested in
A report on consumer financial literacy summarized data from a representative sample of 1,664 adult Americans. Based on data fro
daser333 [38]

Answer:

a. The 95% confidence interval for the proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is (0.54, 0.588). This means that we are 95% sure that the true proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is between these two bounds.

b. Because this confidence interval is entirely above 0.5, the interval is consistent with the statement that a majority of adult Americans would give themselves a grade of A or B.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

Sample of 1,664 adult Americans, 939 people in the sample would have given themselves a grade of A or B in personal finance.

This means that n = 1664, \pi = \frac{939}{1664} = 0.5643

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5643 - 1.96\sqrt{\frac{0.5643*0.4357}{1644}} = 0.54

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5643 + 1.96\sqrt{\frac{0.5643*0.4357}{1644}} = 0.588

The 95% confidence interval for the proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is (0.54, 0.588). This means that we are 95% sure that the true proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is between these two bounds.

(b) Is the confidence interval from part (a) consistent with the statement that a majority of adult Americans would give themselves a grade of A or B?

Yes, because the confidence interval is entirely above 0.5.

Because this confidence interval is entirely above 0.5, the interval is consistent with the statement that a majority of adult Americans would give themselves a grade of A or B.

8 0
2 years ago
8TH GRADE MATH 100 POINTS+BRAINLIEST - Factor Quadratic equations- please write out the steps, explain simply, and possibly prov
Anestetic [448]

Hello,

We have : (a + b)² = a² + 2ab + b²

4x² + 20x + 25 = (2x)² + 2 × 2x × 5 + 5² = (2x + 5)² → answer B

Here, we have a = 2x and b = 5 !

6 0
1 year ago
Read 2 more answers
Solve the following base ten riddle: I have 30 ones, 82 thousands, 4 hundred thousands, 60 tens, and 100 hundreds. What number a
Anon25 [30]

Answer:

492,630

Logic is the only explanation I have for you...

6 0
2 years ago
Instructions:Type the correct answer in the box.
alexira [117]
180 miles? seems like the question is incomplete
5 0
3 years ago
Read 2 more answers
How I can answer this question, NO LINKS, if you answer correctly I will give u brainliest!
olga nikolaevna [1]

Answer:

27 children

Step-by-step explanation:

So, if you add 9 +4 = 13. 13 x 3 = 39.

3 times 9 = 27

Hope this helped! Pls mark me brainliest!

5 0
2 years ago
Read 2 more answers
Other questions:
  • The area of a pizza is 113 square inches. What would the radius have to be to make that statement true?​
    13·1 answer
  • HELPPPPPPPPPPPP!!!!!
    10·2 answers
  • PLEASE HELP ME OUT.
    15·1 answer
  • (-7)^-1 without an exponent
    7·1 answer
  • Twelve hundred-thousandths is how much greater than twenty millionths
    5·1 answer
  • I'm taking College algebra and I don't know how to do this problem: f (x) = (x-2)^2 + 4
    12·1 answer
  • Find the Domain and Range of the graph<br> Plz helppppppppppp
    7·2 answers
  • What is the distance between the points P(-5, 4), Q(7, -5)
    6·1 answer
  • Please I really need help, and please don't try and play me becasue someone just put the wrong answer and juked 70 of my points
    10·2 answers
  • What is four squared?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!