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Mttblink
 2 years ago
Help with these:/ I don't understand
Mttblink
 2 years ago
Help with these:/ I don't understand

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hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1can you find slope of any given line ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1like say , x5y = 10 is a line. can you find slope of this line first ?

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Uh no not really... with a quick review I probably can

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1good, so i have x5y =10 i will try to isolate y and bring it in the form y=mx+c where m=slope so, x=5y10 5y = x+10 y= (1/5)x +2 got this ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1cool, so can you find the slope of x 3y=9 line ? in same way

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1oh and i forgot to mention, y= (1/5)x +2 comparing with y=mx+c gives, m=slope = 1/5

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1x37=9 3y=x+9 Y=(1/3)x+3

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1So slope would be 1/3 I assume?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1correct! :) now try to find slopes of other 3 lines also! and tell me, so that i will verify :)

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.14x+2y=5 2y=4x+5 Y(1/2)x+2.5 ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.12y=4x+5 is correct, but then divide both sides by 2 what u get ?

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.110x5y=8 5y=10x+8 Y=2x+1.6?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.110x5y=8 5y=10x+8 <<<<<<NO! 5y = 10x +8

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1and you would get y=2+2.5

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Ahh okay 10 so the problem would come out with a positive 2x

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1yes, so the slope will be m= 2 , right ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.14x+2y=5 slope = 2 make a note of all slopes, we'll need them

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1and what about last line ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1Good! now here's the rule : slope of parallel lines are equal! so, for the last one, slope of line parallel to 4x+y=1 will also be m=4 :) so, for last, the correct option will be `C) m=4` got this ? in same way, can you match the 2nd last and 3rd last ?

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah I got it, Thanks a ton man. You need to be my teacher xD

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1haha, :) but we still require to do the 1st 2 !

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1another rule, `product of slopes of perpendicular lines = 1 ` so, for 1st one we had slope = 1/5 let slope of perpendicular line be m. so, \(\Large m\times (1/5)=1\) find m from here :)

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.11st one is m=1/5? 2cnd one is m=1/3? It seems like these would be the answers but they are not possible to be selected.

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1because perpendicular lines follow different rule :)

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Well I still don't exactly get how it goes from (1/5) to 1...

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1product of slopes = 1 is the rule so, m (1/5) =1 multiplying by 5, m = 5 got this ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1multiplying by 5 on both sides.

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1I'm confused on the product of slopes part, I get the multiplying on both sides. So like can you explain the product of slopes rule.. I tried looking it up on google but nothing I can comprehend really comes up.

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1if say line 1 has slope M1 and line 2 has slope M2 now if these 2 lines are perpendicular to each other, then M1*M2 =1

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1another way to remember the same thing is, the slope of line is negative reciprocal of the perpendicular line, so, slope of line perpendicular to line with slope 1/5 will be  (1/(1/5)) = 5

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1so, thats your 1st one, m =5 for 2nd one, we had slope = 1/3, so m *(1/3) = 1 so, m=3 is the answer to 2nd one :)

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Okay, so basically whenever there is a fraction just take (1/_) blank space number lol

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1you forgot the negative :P 1/ stuff

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1but this only applies to perpendicular lines

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1for parallel lines, slope are equal

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Oh I see says the blind man

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1i hope you got the entire problem clearly ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1ask if any doubts anywhere

Mttblink
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah I get it now man thanks a ton
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