What is y in the first line if the line passing though (-1,y) and (1,0) perpendicular to the line passing (8,4) and (-1,1) ?

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Step-by-step explanation:

A line that goes through and where would have a slope of .

The slope of the line that goes through and would thus be:

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Two lines in a cartesian plane are perpendicular to one another if and only if the product of their slopes is .

Thus, if and denote the slope of the first and second lines in this question, since the two lines are perpendicular to one another. Since , the slope of the first line would be:

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Given that the first line goes through the point , the point-slope equation of that line would be:

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Substitute in to find the -coordinate of the point in question:

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answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

mark brainliest.