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2 years ago

What is the axis of symmetry for f(x) = 2x2 − 8x 8? x = −2 x = −3 x = 3 x = 2

2 answers:

7 0

The first part of the quadratic formula, x = - b/2a, is the equation of the axis of symmetry, and the x-coordinate of the vertex. 

In standard form: - 2x² + 8x - 5 = 0, a = - 2, b = 8, c = - 5 

The axis of symmetry: x = - 8/2(- 2) = - 8/- 4 = 2 

Go back and solve for y to find the y-coordinate of the vertex. 

y = - 2(2)² + 8(2) - 5 

y = - 2(4) + 16 - 5 

y = - 8 + 16 - 5 

y = 3 

Vertex is (2, 3)

lys-0071 [83]2 years ago

7 0

The answer i got was x=2

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Michelle can organize More than 5 teams.

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3 years ago

Jalen bought 24 juice packs for $7.20 Tia bought six juice packs for $2.70 which statement describes the difference in the unit

tensa zangetsu [6.8K]

The difference in unit prices of Jalen's and Tia's juice packs is $0.15

Solution:

Given that,

Jalen bought 24 juice packs for $7.20

Unit price means price per juice pack

Unit price is found by dividing 7.20 by 24

$\text{Cost per juice pack } = \frac{7.20}{24} = 0.3$

Thus unit price of Jalen is $ 0.3

Tia bought six juice packs for $2.70

Unit price is found by dividing 2.70 by 6

$\text{Cost per juice pack } = \frac{2.70}{6} = 0.45$

Thus cost per pack of Tia is $ 0.45

Difference in the unit prices of Jalen and Tia juice pack

Difference = $ 0.45 - $ 0.3

Difference = $ 0.15

Thus the difference in unit prices of Jalen's and Tia's juice packs is $0.15

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2 years ago

Katy is walking toward a bridge. See full question below

oksano4ka [1.4K]

Answer:

Step-by-step explanation:

No c

as she was initially 300m away from the bridge (distance from bridge=300m) (time=0) so it was her starting point.

and after 6 minutes (time=6min) she reached the bridge. (distance from bridge = 0m)

5 0

2 years ago

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By the end of year 8, demarco and tanya would have to pay a final payout of $120,887. $130,900. $143,152. $154,768.

Lubov Fominskaja [6]

If a person invests $50 in a business and gets a percentage increase of 10%, then he would have $55 as his final payout.

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This refers to the financial activity where a person puts money or an asset into a business or venture to gain profit after a period of time.

Hence, we can see that since your question is incomplete as it does not include the initial amount of both Demarco and Tanya, then a final payout cannot be found.

Read more about investments here:

brainly.com/question/25300925

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1 year ago

Read 2 more answers

Find a function where f(0)=2 and f(1)=2

xenn [34]

Answer:

Do you want to be extremely boring?

Since the value is 2 at both 0 and 1, why not make it so the value is 2 everywhere else?

$f(x) = 2$ is a valid solution.

Want something more fun? Why not a parabola? $f(x)= ax^2+bx+c$ .

At this point you have three parameters to play with, and from the fact that $f(0)=2$ we can already fix one of them, in particular $c=2$ . At this point I would recommend picking an easy value for one of the two, let's say $a= 1$ (or even $a=-1$ , it will just flip everything upside down) and find out b accordingly: $f(1)=2 \rightarrow 1^2+b+2=2 \rightarrow b=-1$

Our function becomes

$f(x) = x^2-x+2$

Notice that it works even by switching sign in the first two terms: $f(x) = -x^2+x+2$

Want something even more creative? Try playing with a cosine tweaking it's amplitude and frequency so that it's period goes to 1 and it's amplitude gets to 2: $f(x) = A cos (kx)$

Since cosine is bound between -1 and 1, in order to reach the maximum at 2 we need $A= 2$ , and at that point the first condition is guaranteed; using the second to find k we get $2= 2 cos (k1) = cos k = 1 \rightarrow k = 2\pi$

$f(x) = 2cos(2\pi x)$

Or how about a sine wave that oscillates around 2? with a similar reasoning you get

$f(x)= 2+sin(2\pi x)$

Sky is the limit.

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2 years ago