3 years ago

4x+7y= 28 solve for y Not a graphing question

1 answer:

4 0

The answer I got was y=-4/7x +4

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Vadim26 [7]

2x²+x-6=0
(2x-3)(x+2)=0
x=3/2 or -2
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3 years ago

mote1985 [20]

Answer:

intersection of the y axis

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3 years ago

beks73 [17]

SOLUTION

From the question, the center of the hyperbola is

$\begin{gathered} (h,k),\text{ which is } \\ (0,0) \end{gathered}$

a is the distance between the center to vertex, which is -1 or 1, and

c is the distance between the center to foci, which is -2 or 2.

b is given as

$\begin{gathered} b^2=c^2-a^2 \\ b^2=2^2-1^2 \\ b=\sqrt[]{3} \end{gathered}$

But equation of a hyperbola is given as

$\frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1$

Substituting the values of a, b, h and k, we have

$\begin{gathered} \frac{(x-0)^2}{1^2}-\frac{(y-0)^2}{\sqrt[]{3}^2}=1 \\ \frac{x^2}{1}-\frac{y^2}{3}=1 \end{gathered}$

Hence the answer is

$\frac{x^2}{1}-\frac{y^2}{3}=1$

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1 year ago

taurus [48]

Answer:

what are the following??

Step-by-step explanation:

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2 years ago

Mrac [35]

What is the question?

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3 years ago