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
marysya [2.9K]
3 years ago
13

The graph of which function has an axis of symmetry at x = 3? f(x) = x2 3x 1 or f(x) = x2 – 3x – 3 or f(x) = x2 6x 3 or f(x) = x

2 – 6x – 1
Mathematics
2 answers:
Wittaler [7]3 years ago
6 0
For
ax^2+bx+c
the axis of symmetry is -b/2a


first one
-3/2=3, nope

2nd one
3/2=3? nope

3rd one
-6/2=3? nope

fourth
6/2=3? yes
answer is last one or
f(x)=x^2-6x-1
Bumek [7]3 years ago
5 0

Answer:

Option 4th is correct

f(x) = x^2-6x-1

Step-by-step explanation:

A quadratic equation is in the form of: y=ax^2+bx+c.....[1]; then the axis of symmetry is given by:

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

As per the statement:

To find :

The graph of which function has an axis of symmetry at x = 3

From the given options:

Option 4th is the graph of a function which has axis of symmetry at x = 3

Consider a function:

f(x) =x^2-6x-1

On comparing with [1] we have;

a = 1  and b = -6

then;

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

⇒x = \frac{6}{2} =3

Therefore, The graph of which function has an axis of symmetry at x = 3 is, f(x) = x^2-6x-1

You might be interested in
Kelly was building a bed for her dollhouse. She used her bed, which is 4 feet × 6 feet, as a guide. She scaled down the dimensio
victus00 [196]
1/5=x/4
0.8ft
1/5=x/6
1.2ft
Dimensions are 0.8ft X 1.2ft.
5 0
3 years ago
Read 2 more answers
425,. ,339 what is in between
lesya [120]
255 is the answer to this question
8 0
3 years ago
If your car gets 35 miles per​ gallon, how much does it cost to drive 400 miles when gasoline costs ​$3.30 per​ gallon?
Arlecino [84]
To solve his equation start by finding how many gallons of gas you need to purchase for the total trip.
Set up an expression that divides the total distance of the trip by the miles received per gallon.
This gives you:
400 / 35

Divide to get 11.43 gallons.

To find the cost of this, multiply the total number of gallons needed to cover the trip by the cost of each gallon.
Set this up in another expression.
This results in:
11.43 x 3.30

Multiply the values to find the total cost.
This leaves you with:
37.72

So, the total cost for gas for a 400 mile trip on 35 miles per gallon is $37.72.

I hope this is correct and helps you! :)
7 0
3 years ago
5.241 divided by 3 please help me​
SOVA2 [1]

Hey Mate!

Your answer is

1.747

Tell me if this helps!<3

5 0
3 years ago
Read 2 more answers
You have 8 times as many dimes as nickels. You have 18 dimes
fenix001 [56]

Answer:

$1.70

Step-by-step explanation:

Let the number of nickels be  x.

Thus, by the problem statement, the number of dimes is  [/tex] 8 \cdot x = 8x. [/tex]

Therefore, there are 8x + x = 9 coins in total. To find what x is, we need to solve the equation 9x = 18. This can be done by dividing both sides by 9 which gives x=2. Plugging these values in tells us that there are 2  nickels and 16 dimes. (Test it out!) Thus, the nickels are worth 2 \cdot 5 = 10 cents and the dimes are worth 16 \cdot 10 = 160 cents, so in all, you have 10 + 160 = 170 cents which is $1.70.

Hope this helps :)

7 0
2 years ago
Other questions:
  • Radius=6cm and round to the nearest tenth use 3.14 or 22/7 for pie
    13·1 answer
  • Help me please!! hurry up timed
    12·1 answer
  • Select all of the x values that are within the solution set of: -5x - 3&gt;-23
    15·2 answers
  • Most road and racing bicycles today use 622 mm diameter rims.  Write and expression which would solve for the circumference of t
    15·1 answer
  • Pls help<br> simplify 24x2 − 52x + 20
    13·2 answers
  • Identify the domain of this function
    12·2 answers
  • Find the value of tan 0 for each of the following
    10·1 answer
  • Colby hit four more home runs that twice the number of home runs Dominic hit. Together they hit ten home runs. How many home run
    12·1 answer
  • Explain why the solution set of the inequality |x|&lt;5 is the intersection of two sets, while the solution set of the inequalit
    14·1 answer
  • Write 36.7 decimal out in words.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!