We have been given that an ellipse has a center at the origin, a vertex along the minor axis at (0,-8), and a focus at (15,0). We are asked to find the equation for the ellipse.
The standard from an ellipse centered at origin with major axes at x-axis is , where
a = Horizontal radius,
b = Vertical radius.
Since focus is at x-axis, so our ellipse will be a major horizontal axis.
Horizontal radius will be equal to distance from origin to point (15,0) that is
The vertical radius would be distance from origin to point (0,-8) that is:
Upon substituting values of a and b in above equation, we will get:
Therefore, our required equation would be .
Answer:
y = x - 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 1 , then
y = x + c ← is the partial equation
To find c substitute (- 2, - 3 ) into the partial equation
- 3 = - 2 + c ⇒ c = - 3 + 2 = - 1
y = x - 1 ← equation of line
Answer:
C.transaction
Step-by-step explanation:
:
Since , we get:
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We have
simplify
then the radical rule is used:
⇒
Now we have and
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and
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since is the half of
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<em>(-4+5=1)</em>
The answer is -4
Hope this helped