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
seropon [69]
3 years ago
14

HAPPY APRIL FOOLS- CAN ANYBODY ANSWER MY QUESTION---------

Mathematics
1 answer:
Bogdan [553]3 years ago
4 0
This is an interesting question.  Wish there were more questions of this kind.

This question helps us recognize the use of the vertex form of a quadratic expression/function.

The vertex form is in the form
f(x)=y=a(x-h)^2+k

The extreme value of the function occurs when x=h, i.e. when the first term vanishes, which leaves the value of the function equal to k.  I.e. the vertex of the function is at (h,k).

For example, when
f(x)=5(x-4)^2+7
at x=4, f(4)=5(4-4)^2+7=5(0)+7=7,
in other words, f(x) is at its minimum when x=4, with a value of 7,
even simpler, the vertex of the function is at (4,7).

How do we know if it is a maximum or minimum?

If the first parameter "a" is positive, then at any other value than x=h, the function has a greater value than the vertex, hence a>0 => minimum.
Similarly, if the first parameter "a" is negative, then whenever x does not equal h, the value of the function is smaller, hence a<0 => maximum.

For example, with f(x)=5(x-4)^2+7, a=+5 >0, so (4,7) is a minimum.
Check: f(0)=5(0-4)^2+7=16+7=23 > 7, or (0,23) verifies that (4,7) is a minimum.

For given situations A, B, C, & D, we see that only one function is in the vertex form, i.e. y=a(x-h)+k, namely situation B
B. y=-3(x-2)^2+5, where a=-3, h=2 and k=5.
This means that the function has a maximum at the vertex (2,5).  It has a maximum because a=-3 < 0, as discussed above.

Oh yes, enjoy the rest of April Fools Day!  lol

You might be interested in
If two angles are suplementar ang congruent, the measure of each angle is 90 degree true or false
Westkost [7]

True, bc they add up to 180 and are the same size.

3 0
3 years ago
1. The handwritten rough draft of your book report is 4 pages long. Typing
alexandr402 [8]

Answer:

The report is 960 words long.

Step-by-step explanation:

The handwritten book report is 4 pages long and the typed report is 3 pages long.

Now, it is given that typing at a steady rate of 20 words per minute, it takes 48 minutes to enter the report into soft copy.

So, the required number of words of the report is (20 × 48) = 960 words.  

Hence, the report is 960 words long. (Answer)

3 0
3 years ago
WILL MARK BRAINLIEST!!
Rudik [331]

Answer:

C = (A*P - 8.4Y -330T + 200I) / 100

Step-by-step explanation:

P = (8.4Y + 330T + 100C -200I ) / A

now we have to calculate completed passes C for given P, Y, T, I, A

A*P = 8.4Y + 330T -200I +100C

100C = A*P - 8.4Y - 330T + 200I

C = (A*P - 8.4Y -330T + 200I) / 100

I just solved the equation for C

5 0
3 years ago
Which of these true conditional statements has a false converse?
cestrela7 [59]
Correct answer is A. For example 50/2= 25 which is odd
4 0
3 years ago
What is the measure of ∠C?
murzikaleks [220]
You take all known values and subtract it from 360. 

360-132-39-90=99.

The answer is 99.
8 0
3 years ago
Other questions:
  • Hey there!<br> What is rational numbers and how can I multiple them??<br> Pls tell mee!!
    10·2 answers
  • Number Lines / Algebra. Can anyone please tell me to answers to all of these number lines below. Thank you!!
    15·1 answer
  • find the area and circumference of a circle that has a diameter of 17mm. Write your answer in terms of "pi" and as a decimal app
    7·1 answer
  • If b = 7, what is the value of the expression 2(10 – b)?
    5·2 answers
  • What is half of a teaspoon of vanilla
    8·1 answer
  • What is the volume of the figure below?
    10·2 answers
  • You need school supplies. You go to the store and see that there are 6 different
    15·1 answer
  • PLEASE HELP!!<br><br> What is the y-intercept?
    9·2 answers
  • 18 miles to 18 yards to a fraction do i divided ?
    10·2 answers
  • Rationalize the denominator:<br><br> GRADE 9<br><br><br> CBSE
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!