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
m_a_m_a [10]
3 years ago
12

Determining the Axis of Symmetry of Quadratic Functions Which functions have an axis of symmetry of x = –2? Check all that apply

. f(x) = x2 + 4x + 3 f(x) = x2 – 4x – 5 f(x) = x2 + 6x + 2 f(x) = –2x2 – 8x + 1 f(x) = –2x2 + 8x – 2
Mathematics
2 answers:
Kruka [31]3 years ago
6 0

Answer:

f(x) = x^2 + 4x + 3

f(x) = -2x^2 - 8x + 1

Step-by-step explanation:

f(x) = x^2 + 4x + 3

To find axis of symmetry we apply formula

x= \frac{-b}{2a}

a= 1, b= 4

x= \frac{-4}{2(1)}=-2

Axis of symmetry at x=-2

f(x) = x^2 - 4x - 5

a= 1, b= -4

x= \frac{4}{2(1)}=2

Axis of symmetry at x=2

f(x) = x^2 + 6x + 2

a= 1, b= 6

x= \frac{-6}{2(1)}=-3

Axis of symmetry at x=-3

f(x) = -2x^2 - 8x + 1

a= -2, b= -8

x= \frac{8}{2(-2)}=-2

Axis of symmetry at x=-2

f(x) = -2x^2 + 8x - 2

a= -2, b= 8

x= \frac{-8}{2(-2)}=2

vagabundo [1.1K]3 years ago
4 0

answers:

             f(x) = x² + 4x + 3, f(x) = –2x² – 8x + 1,

You might be interested in
What is nine plus ten? If you get it right I’ll give you brainliest
Finger [1]

Answer:

19

Step-by-step explanation:

ok is this just a joke?

nine plus ten

9 + 10 = 19

7 0
3 years ago
Please help.. no links​
neonofarm [45]

Answer:

Its 9.0 units

Step-by-step explanation:

For the side mostly to the left, its gonna be 3 units, since we can easlily count it

Now, for the diagonals, we have to use the formula for the area of a triangle, which is (l * w) / 2 = a.

For the bottom side, its 3 along the x axis and 1 along the y axis. 3 * 1 is 3, now divide that by 2 and you got 1.5

Now, for the right side, its 5 on the y, 1 on the x. Multiply 1 by 5, you got 5. Now divide that by 2 and you have 2.5

Finally, for the top side, its 4 on the x, and 1 on the y. 4 * 1 is 4, divided by 2 and its 2.

Alright, now we have to add 'em all together. 3 + 1.5 + 2.5 + 2 is 9 units

Theres your answer :)

6 0
2 years ago
What are 2 methods for finding the sale price of an item that is discounted 30%?
anyanavicka [17]
First you have to know the price of item.

EX: Say a candy car costs $1.50. 
The candy bar was marked down 30%.
$1.50 x 30/100 = $.45
The item will decrease $.45.
$1.50 - $.45 = $1.05 





6 0
3 years ago
Latonya swims 50 meters in 1/2 minute
ipn [44]
S = Speed
D = Distance
T = Time
S = D/T
S = 50m/1/2
50 divided by 1/2 = 25
25 = 50/1/2
S = 25 m/min.
6 0
3 years ago
Read 2 more answers
F(x) = -2<br> Find f (3)
valkas [14]

Answer:

f= -2/3

Step-by-step explanation:

Let's solve your equation step-by-step.

f(3)=−2

Step 1: Simplify both sides of the equation.

3f=−2

Step 2: Divide both sides by 3.

3f

3

=

−2

3

f=

−2

3

Answer:

f=

−2

3

8 0
3 years ago
Other questions:
  • A test has thirty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice
    6·2 answers
  • How many degrees is 25/360 of a full turn?
    5·2 answers
  • 5 ft is ____ % of 37 1 2 ft; 37 1 2 ft is ____ % of 5 ft
    8·1 answer
  • What is mode and in 2hat ways can be find the mode of a given data!?​
    9·1 answer
  • 3) What is the SURFACE AREA of the solid with the given measurements? Square Pyramid base edge 4 cm, slant height 11 cm​
    10·1 answer
  • Solve for w. -34=-6+w/4
    12·2 answers
  • 30 POINTS NEED HELP ASAP MATH QUESTION<br><br> A. 19<br> B. 108<br> C. 133<br> D. 763
    12·1 answer
  • KEEP HELP ME PLZZZZZZZZZZ!
    7·1 answer
  • The Fighting Hens' record has improved every year. The 2016 team won 3
    15·1 answer
  • The sum of two numbers is 84. The square of the first number is 6 more than the second number.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!