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3 years ago

Please helpppp to find the answer would really appreciate it !

Mathematics

1 answer:

son4ous [18]3 years ago

4 0

Answer:

the answer is in the attachment

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Can somebody explain to me how to find vertex form from a graph?? I put an example graph if you need it :)))

kifflom [539]

Answer:

y = - 4(x + 3)² + 7

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

From the graph (h, k ) = (- 3, 7 ), thus

y = a(x + 3)² + 7

To find a we require a point on the graph other than the vertex

Using (- 2, 3) , substitute into the equation

3 = a(- 2 + 3)² + 7

3 = a + 7 ( subtract 7 from both sides )

a = - 4

Thus

y = - 4(x + 3)² + 7 ← in vertex form

8 0

3 years ago

I NEED SOME SERIOUS HELP IM BEING TIMED ON THIS TEST

Airida [17]

Answer:

Seventy-five percent of the data values lie between 20 and 50.

Hope this helps

Sorry if I am wrong but I saw the answer in the internet

If correct can I get brainliest please

4 0

4 years ago

Read 2 more answers

A new computer loses 1/2 of its value every year. Which graph could represent the relationship between the year and the computer

Igoryamba

Let's first consider: the fact that a new computer loses 1/2 of its value

⇒ third choice and fourth choice are eliminated

⇒ because of the graph project the computer's value as growing over

years

Now let's try to set up an equation:

After 1st year ⇒ Computer's value = $total_.value*\frac{1}{2}$

After 2nd year ⇒ Computer's value = $total_.value*\frac{1}{2}*\frac{1}{2}=total_.value*(\frac{1}{2} )^2$

After 3rd year ⇒ Computer's value = $total_.value*\frac{1}{2}*\frac{1}{2}* \frac{1}{2}=total_.value*(\frac{1}{2})^3$

..... (Hopefully you see a pattern)

After x year ⇒ Computer's value = $total_.value*(\frac{1}{2})^x$

Therefore, the equation is: $total_.value*(\frac{1}{2})^x$

⇒that means the graph has to exponentially decreasing as it has

an exponent (meaning the function is exponential) and a base less

than 1 (meaning that the function is decreasing)

Answer: Choice (1)

Hope that helps!

5 0

2 years ago

Help me please and thank you.

11111nata11111 [884]

Answer:

The constant term is 6

The x³ term has a coeficient of 12

The resulting polynomial has degree 4

7 0

3 years ago

Question 1 of 12

Xelga [282]

B

The answer is, I already took this

5 0

3 years ago

Read 2 more answers