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Elden [556K]
3 years ago
5

Which of the following is not a linear function? F(x)=-2 f(x)=x-2 f(x)=2x f(x)=x^2

Mathematics
1 answer:
Ivahew [28]3 years ago
6 0
<span>f(x)=-2      = Line
</span><span>f(x)=x-2    = Line
</span><span>f(x)=2x     = Line
</span><span>f(x)=x^2   = Parablola</span>
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Help me with 22 and 23
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22.

pythagorean theorem says legs a and b and hypotenuse c of a right triangle are related via the equation c²=a²+b². in other words, adding the sum of the squares of the legs get you the square of the hypotenuse

if the hypotenuse is 4 meters long, c = 4.

if one leg is 3 meters long, we can choose either a or b to be 3. it does not really matter. let us choose a = 3. now we have to find b.

if we have c²=a²+b², we can solve for b.

subtract a² both sides to get c²-a²=b², and then square root both sides to get

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b = √(4²-3²) = √(16 -9) = √7

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23

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notice how the bigger triangle just have a doubled hypotenuse. therefore, the bigger triangle's x and y are just the corresponding smaller triangle values doubled.

x = 6 and y = 8

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