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ikadub [295]
3 years ago
9

{(-4,8),(-2,4),(0,1),(2,4),(4,8)}

Mathematics
1 answer:
astraxan [27]3 years ago
5 0

Answer:

Since there is one value of y for every value of x in (−4,8),(−2,4),(0,1),(2,4), ( 4,8), this relation is a function. The relation is a function.

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How exactly does Pythagorean theorem work??
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Step-by-step explanation:

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densk [106]

Answer:

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Step-by-step explanation:

step 1

Find the diameter of the circle

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

A(-2,1)\\B(6,7)  

substitute the values

d=\sqrt{(7-1)^{2}+(6+2)^{2}}

d=\sqrt{(6)^{2}+(8)^{2}}

d=\sqrt{100}

d=10\ units

The radius is half the diameter

so

r=10/2=5\ units

step 2

Find the center of the circle

the center of the circle is the midpoint between the endpoints of the diameter

so

The center is

(\frac{-2+6}{2},\frac{1+7}{2})

(2,4)

step 3

Find the equation of the circle

The equation of the circle is

(x-h)^{2}+(y-k)^{2}=r^{2}

substitute the values

(x-2)^{2}+(y-4)^{2}=5^{2}

(x-2)^{2}+(y-4)^{2}=25

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3 years ago
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This has brightened my day.

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