3 years ago

What is the axis of symmetry for the function f(x)=7−4x+x2?

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

6 0

Answer:

x = 2

Step-by-step explanation:

$y = {x}^{2} - 4x + 7 \\ y = (x - 2) {}^{2} - 4 + 7 \\ y = {(x - 2)}^{2} + 3$

Therefore, axis of symmetry is x = 2

You might be interested in

What would be the answer to this problem <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7x-3%7D%7B9%7D%20%5Cgeq%208-2x" id="TexForm

Alenkasestr [34]

Answer:

$x\geq 3$

Step-by-step explanation:

6 0

3 years ago

Which expression has a positive value? (-5)(-9) 2-4 12-1-4) -3+(-7)

11111nata11111 [884]

Answer:

(-5)(-9)

Step-by-step explanation:

any negative multiplied by any negative will always equal a positive

7 0

3 years ago

Read 2 more answers

Claudia spends $2.15 a day for lunch. Her cafeteria lunch account has a balance of $48.00. Which equation can be used to determi

andreev551 [17]

Answer:

d≤48/2.15

Step-by-step explanation:

Step one:

Given data

Claudia spends $2.15 a day for lunch.

We are told that her balance is $48.00

let the number of days be d

Step two:

The maximum number of days she can eat is given as

d≤48/2.15

d≤22.33 days

7 0

3 years ago

Rolls are being prepared to go to grocery stores. Divide 72 rolls into 2 groups so the ratio is 3 to 5. (please include your wor

natali 33 [55]

$\sf 3:5 \to 3x:5x\\\\3x +5 = 8x\\ 8x = 72\\ x = 9\\\\9\times 3 =27\\9\times 5 =45\\ 27+45=72\\\\so~ the~ 2~ groups ~are~ 27~ and~ 45$

8 0

3 years ago

What is the volume of the triangular prism

mestny [16]

Answer:

308 cm³

Step-by-step explanation:

The volume is:

V = Bl = 1/2(ah)l
V = 1/2(7*8)*11 = 308 cm³

3 0

3 years ago

Read 2 more answers