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sergiy2304 [10]
4 years ago
14

A parabola is represented by the equation y2 = 5x. Which equation represents the directrix? 

Mathematics
2 answers:
scoray [572]4 years ago
8 0

Answer:

x=-\frac{5}{4}

Step-by-step explanation:

Given equation,

y^2=5x-----(1)

Which is the equation of a parabola along x-axis,

From equation (1),

(y-0)^2=\frac{4}{4}\times 5(x-0)

(y-0)^2=4(\frac{5}{4})(x-0)-----(2)

We know that, the standard form of a parabola along x-axis is,

(y-k)^2=4p(x-h)

Where, the directrix is,

x = h-p

By comparing equation (2),

The directrix of the given parabola is,

x = 0 - \frac{5}{4}\implies x = -\frac{5}{4}

zalisa [80]4 years ago
4 0

Answer:

On ed its x = -5/4

Step-by-step explanation:

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86 square inches

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Step-by-step explanation:

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4 0
3 years ago
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Bumek [7]
The answer is:  z² .
__________________________
Given: <span>(x÷(y÷z))÷((x÷y)÷z) ;  without any specified values for the variables; 
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we shall simplify.
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We have: 
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</span>(x÷(y÷z))  /  ((x÷y)÷z) .
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((x ÷ y) ÷z ) = (x / y) / z =  (x / y) * (1 / z) = (x *1) / (y *z) = [x / (zy)]
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So (x÷(y÷z))  /  ((x÷y)÷z)  = (x÷(y÷z)) ÷  ((x÷y)÷z) =

 [(xz) / y ] ÷ [x / (zy)]  = [(xz) / y ] /  [x / (zy)] =
                                                                    [(xz) / y ] * [(zy) / x] ;
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                               The 2 (two) z's "cancel out" to "1" ; and
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4 0
4 years ago
What is the spread of the data in the dot plot?
Igoryamba
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5 0
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GenaCL600 [577]

Answer:

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5 0
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Step-by-step explanation:

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