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3 years ago

Which equation represents a nonlinear function?

Mathematics

1 answer:

djverab [1.8K]3 years ago

5 0

Answer and the Step-by-step explanation : -

1) x(y - 5) = 2

First you gotta open the brackets so then you'll get : -

xy - 5x = 2

Answer : - " since xy is remaining the equation will not linear "

2) y - 2(x + 9) = 0

"y - 2x - 18 = 0 "

"Y = 2x + 18 "

Answer : - "This is linear"

3) 3y + 6(2 - x) = 5

3y + 12 - 6x = 5

3y = 5 - 12 + 6x

3y = 6x - 7

Y = 2x - 7/3

Answer : -This is linear

4) 2(y + x) = 0

2y + 2x = 0

2y = - 2x

y = - x

Answer : - " This is linear "

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raj and his sister zia are both at secondary school. Raj is three years older than zia. the sum of the squares of their ages is

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Let Zia's age be = x years

Raj is three years older than Zia, so Raj's age = x+3 years

As the sum of the squares of their ages is 369, so

$x^{2}+(x+3)^{2}=369$

$x^{2}+x^{2}+6x+9=369$

$2x^{2}+6x+9=369$

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Factoring 2 out we have,

$x^{2}+3x-180=0$

Now solving this equation,

$x^{2}+15x-12x-180=0$

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