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lianna [129]
3 years ago
6

i'm doing operations with complex numbers and i understand everything until there's a number in front of the parentheses so plea

se help :(
Mathematics
1 answer:
UkoKoshka [18]3 years ago
5 0
It a number is in front of a parentheses that just means you have to multiply everything inside the parentheses by the number in front
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1. Take an arbitrary point that lies on the first line y=3x+10. Let x=0, then y=10 and point has coordinates (0,10).


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The second line has equation y=3x-20, that is 3x-y-20=0. By the previous formula the distance from the point (0,10) to the line 3x-y-20=0 is:

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