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
Rudik [331]
3 years ago
9

The vertex of this parabola is at (2, -4). When the y-value is -3, the x-value is -3. What is the coefficient of the squared ter

m in the parabola's equation?A.-1B.-5C.1D.5
Mathematics
1 answer:
attashe74 [19]3 years ago
7 0

Answer:

a = 1/25

Step-by-step explanation:

The vertex form of the parabola is

y = a(x-h)^2 +k

where (h,k) is the vertex

y = a(x-2)^2 -4

We have a point on the parabola (-3,-3) so substitute this into the equation

-3 = a(-3-2)^2 -4

-3 = a(-5)^2 -4

Add 4 to each side

-3+4 = a(25) +4-4

1 = 25a

Divide each side by 25

1/25 = a

y = 1/25(x-2)^2 -4

You might be interested in
Find one possible missing coordinate so that the point becomes a solution to the given inequality. (x, 8) is a solution to 3x -
Marina86 [1]

Answer:

  x = 0

Step-by-step explanation:

Substituting the given "point" into the equation gives the possibilities for x.

<h3>Substitution</h3>

Using (x, y) = (x, 8), the inequality becomes ...

  3x -4 < 8

Solving for x gives ...

  3x < 12 . . . . . . . add 4

  x < 4 . . . . . . . divide by 3

Any value of x less than 4 will make (x, 8) a solution to the inequality. For example, ...

  x = 0 . . . . . . (0, 8) is a solution to the inequality

6 0
1 year ago
What's the product of 70x6000
MA_775_DIABLO [31]
The product of 70 and 6000 is 420,000.
4 0
3 years ago
How many rectangles can u make with 20 cubes
Mademuasel [1]
<span>"How many rectangles can u make with 20 cubes"
The answer is 4</span>
4 0
2 years ago
Read 2 more answers
In a right triangle whose area is 12, each leg is as long as the side of a certain square. What is the area of the square?
kakasveta [241]
The area of a Square is 144 because 12x12 is 144 and if both sides are 12 then that equals 144. 

Hope this helps!
4 0
3 years ago
Read 2 more answers
which of the following is the equation of the line that passes though the point (-2,1) and has a slope of 4
Ierofanga [76]

An equation that goes through (-2, 1) and has a slope of 4 is y = 4x + 9.


You can find this by looking for the y-intercept (b) by using the slope (m), the point and slope intercept form. The work is below for you.


y = mx + b

1 = 4(-2) + b

1 = -8 + b

9 = b


Now we can use that and the slope to create the equation y = 4x + 9

4 0
3 years ago
Other questions:
  • F(x)= -2x + 2; Find f(5)
    15·1 answer
  • (04.02 LC)
    15·2 answers
  • A student claims that the expression “9 times the sum of a number and 13” is translated to the algebraic expression 9n + 13. Is
    8·1 answer
  • One vertex of a polygon is located at (3, –2). After a rotation, the vertex is located at (2, 3). Which transformations could ha
    8·2 answers
  • Systems of equations have one solution.. . Always. . Sometimes. . Never
    13·1 answer
  • A farmer wants to divide his 2700 km2 of land into two separate pastures for his new horses by building a fence that will enclos
    12·2 answers
  • I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE!!! <br> hurryy
    10·1 answer
  • Mohammed and Sultan are standing 15 meters apart on a straight road, both of them are sighting a gate of a building with angle 5
    10·1 answer
  • Use the horizontal number line shown to answer the question. Which statements are true? Check all that apply. a.–9 &lt; –7 b.–6
    10·2 answers
  • PLEASE HELP?! IM SO SORRY I AM NOT GOOD AT MATH!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!