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
Ira Lisetskai [31]
2 years ago
7

Y = -x^2 + 4x quadratic formula

Mathematics
1 answer:
marin [14]2 years ago
4 0

Answer:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Down

Vertex:  

( 2 , 4 )

Focus:  

( 2 , 15 /4 )

Axis of Symmetry:  

x = 2

Directrix:  

y = 17 /4

x              y

0             0

1              3

2             4

3             3

4             0

To find the x-intercept, substitute in  

0  for  y  and solve for  x . To find the y-intercept, substitute in  0  for  x  and solve for  y .

x-intercept(s):  ( 0 , 0 ) , ( − 4 , 0 )

y-intercept(s):  ( 0 , 0 )

Step-by-step explanation:

You might be interested in
Simplify.<br><br> 7/8+(−2/3) divided by <br> 5/6
Sedaia [141]
7/8+(−2/3) divided by 5/6

(7/8 - 2/3)/(5/6)
=(21/24 - 16/24) / (5/6)
= (5/24)  /  (5/6)
= 5/24 * 6/5
= 6/24
= 1/4
7 0
3 years ago
Read 2 more answers
Tell whether the lines through the given points are parallel, perpendicular, or neither.
ira [324]

Answer: Line 1: (2, 3) , (4, 12)

m = (12 - 3)/(4 - 2) = 9/2  This is the slope of the line

y = (9/2)x + b

3 = (9/2)(2) + b

3 = 9 + b

b = -6

y = (9/2)x  - 6

 

Line 2: (5, 10) , (14,8)

m = (8 - 10)/(14 - 5) = -2/9

this slope is the opposite sign, and inverse of the first equation's slope.  Therefore, the line is perpendicular.

y = mx + b

8 = (-2/9)(14) + b

8 = -28/9 + b

11.11 = b

y = (-2/9)x + 11.11

Step-by-step explanation: Hope this helps :)

7 0
2 years ago
Which expression is equivalent to 2(a+3) when a equals 3<br><br>2(3)<br>5(3)<br>2(3)+3<br>2(3)+6​
sammy [17]
2(3+3) or 2(3)+6, so the answer is the third option. It’s just using the distributive property.
8 0
3 years ago
Read 2 more answers
an indy car driver has to be a certain height to fit into the race car. The following inequality 175&lt;=3x-17&lt;=187, where x
enot [183]

Given inequality : 175 ≤ 3x-17 ≤ 187, where x represents the height of the driver in inches.

Let us solve the inequality for x.

We have 17 is being subtracted in the middle.

Reverse operation of subtraction is addition. So, adding 17 on both sides and also in the middle, we get

175+17 ≤ 3x-17+17 ≤ 187+17

192  ≤ 3x ≤ 204.

Dividing by 3.

192/3  ≤ 3x/3 ≤ 204/3.

64 ≤ x ≤ 68.

Therefore, the height of the driver should be from 64 to 68 inches  to fit into the race car.

8 0
3 years ago
the taxi charges a flat fee of $3.75, plus $1.50 per kilometer driven. What is the total cost of a 10 km trip?
Lubov Fominskaja [6]

Answer:

$18.75

Step-by-step explanation:

Let

y = Total cost

x = number of kilometers

The equation:

y = 3.75 + 1.50x

If x = 10 km

y = 3.75 + 1.50(10)

= 3.75 + 15

= 18.75

y = $18.75

y = Total cost = $18.75

7 0
2 years ago
Other questions:
  • There are 6 minutes of commercials for every 24 minutes of television. How many minutes of commercials are there in 1 hour and 3
    9·1 answer
  • Brad puts an equal amount of money in his savings account once a month.He started with $27.The next month he had $44 in his acco
    13·2 answers
  • I'm new here could someone help.
    11·1 answer
  • How can I solve this ?
    12·2 answers
  • Help me please pretty plese
    14·2 answers
  • Which statements are true about the ordered pair (10, 5) and the system of equations?
    10·1 answer
  • The class has 12 girls and 16 boys what is the ratio of total students to boys simplest form​
    14·2 answers
  • Pablo necesita 7/8 de litro de leche para preparar una bebida. La jarra que usa tiene graduadas las medidas de 1 1/2 litros y 3/
    12·1 answer
  • Express your answer in form a+bi (14+60i)+(-30+2i)
    15·1 answer
  • What is the slop of the line that contains these points?<br> X -4 -3 -3 -1<br> Y 2 5 8 11
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!