3 years ago

-2x^2 + 4x + 16 in vertex form

Mathematics

1 answer:

Reil [10]3 years ago

6 0

Answer:

y = - 2(x - 1)² + 18

Step-by-step explanation:

- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms

= - 2(x² - 2x) + 16

using the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² - 2x

= - 2(x² + 2(- 1)x + 1 - 1) + 16

= - 2(x - 1)² + 2 + 16

= - 2(x - 1)² + 18 ← in vertex form

You might be interested in

the sum of two consecutive numbers divided by their positive difference difference is equal to nine find the larger number

Paha777 [63]

Answer:

the number is 5

Step-by-step explanation:

the difference between any two consecutive numbers is just 1.

so, x + x+1 = 9

x = 4

the next number is 5

pls mark brainliest

7 0

3 years ago

Select the correct answer.

yan [13]

Answer:

the money spent by a buyer to purchase a product

6 0

3 years ago

Read 2 more answers

Please help, and show how you got your answer please

tensa zangetsu [6.8K]

Part A: 32 x 72 x 3 = 6,912

Part B: 6,912 divided by 36 = 192

Hope this helps!

Good Luck!

5 0

3 years ago

Read 2 more answers

How many positive integers are factors of 55^3 + 66^3?

ioda

Answer:

55= 1, 5, 11 and 55

3= 1,3

66= 1, 2, 3, 6, 11, 22, 33, 66

Step-by-step explanation:

you just need to find the multiplacation to eah number

6 0

3 years ago

Read 2 more answers

What is the volume of this sphere with a radius of 9? options> (a)1024π m³ (b) 972π m³ (c)729π m³ (D)81π m³

svetlana [45]

$\bf \textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}\quad 
\begin{cases}
r=radius\\
-----\\
r=9
\end{cases}\implies V=\cfrac{4\pi \cdot 9^3}{3}$

6 0

3 years ago

Read 2 more answers

-2x^2 + 4x + 16 in vertex form​

-2x^2 + 4x + 16 in vertex form