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zmey [24]
2 years ago
15

Which equation describes a parabola that opens left or right and whose vertex is at the point (h, v)?

Mathematics
2 answers:
svetlana [45]2 years ago
7 0

The <em><u>correct answer</u></em> is:

x = a(y-v)²+h

Explanation:

Vertex form of a parabola differs depending on the direction the parabola opens. If it opens up or down, the equation is y = a(x-h)²+v, where (h, v) is the vertex.

If, however, the parabola opens left or right, the equation is x = a(y-v)²+h, where (h, v) is the vertex.

nalin [4]2 years ago
4 0
Vertex is at the point ( h , v ) 
The equation of a parabola is:
x = a ( y - v )² + h
Answer: B )
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Choose the solution(s) of the following system of equations x2 + y2 = 6 x2 – y = 6
ElenaW [278]
<h2>Answer</h2>

x=\sqrt{6}, y=0\\ x=-\sqrt{6} , y=0\\x=\sqrt{5} , y=-1\\x=-\sqrt{5} , y=-1

Or as ordered pairs: (\sqrt{6} ,0),(-\sqrt{6} ,0),(\sqrt{5} ,-1),(-\sqrt{5} ,-1)

<h2>Explanation</h2>

Lets solve our system of equations  step by step

x^2+y^2=6 equation (1)

x^2-y=6 equation (2)

1. Solve for x^2 in equation (2)

x^2-y=6

x^2=6+y equation (3)

2. Replace equation (3) in equation (1) and solve for y

x^2+y^2=6

6+y+y^2=6

y^2+y=0

y(y+1)=0

y=0 or y=-1

3. Replace the values of y in equation (3) and solve for x

- For y=0

x^2=6+y

x^2=6

x=\sqrt{6} or x=-\sqrt{6}

- For y=-1

x^2=6+y

x^2=6-1

x^2=5

x=\sqrt{5} or x=-\sqrt{5}

So, the solutions of our system of equation are:

x=\sqrt{6}, y=0\\ x=-\sqrt{6} , y=0\\x=\sqrt{5} , y=-1\\x=-\sqrt{5} , y=-1

6 0
3 years ago
Read 2 more answers
The point nearest to the origin on a line is at (4, -4). Find the standard form of the equation of the line.
Scrat [10]

Just did a specific one of these; let's do the general case.


The point nearest the origin is (a,b).


The line from the origin through the point is


bx - ay = 0


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ax + by = a^2 + b^2


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That's standard form; let's plug in the numbers:


4 x - 4 y - 32 = 0


x - y - 8 = 0



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3 years ago
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Anit [1.1K]

Answer:

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Step-by-step explanation:

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qwelly [4]

Answer:

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Step-by-step explanation:

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Answer:

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