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PSYCHO15rus [73]

2 years ago

7

Are the point (-1, 1) and (3, 1/5) solutions to the equation 3x-5y=8

1 answer:

Sati [7]2 years ago

5 0

The (3, 1/5) would be a solution while the (-1,1) wouldn’t because when you write this equation in the slope intercept form which is y = 3/5x - 8/5

1/5 = 3/5 (3) - 8/5

would end up with 1/5 = 1/5 which is write

While,

1 = 3/5 (-1) - 8/5

Would end up with
1 = 11/5 which is wrong

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Answer:

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We know that

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Given that

x= 0 then y= 1

$e^0+0+3+(1-1)e^1=C$

C=4

So the our final equation will be

$e^x+xy+3y+(y-1)e^y=4$

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