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anonymous
 one year ago
Help please. Simple question.
If the line passes through the origin, what is the value of k?
anonymous
 one year ago
Help please. Simple question. If the line passes through the origin, what is the value of k?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442327857975:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Slope is dw:1442327944302:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you simply solve this by doing dw:1442328022429:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0does that 0 matter is what im asking

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cuz the y intercept is b which is 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ypu as it passes throught the origin In the form ax+by+c=0 c will be 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so can you answer my question

phi
 one year ago
Best ResponseYou've already chosen the best response.1adding 0 does not change the value (so people don't write it) the equation is y = (7/4)x you could write y = (7/4)x +0 but the +0 does not change the equation so why bother? to find k you put in x=14 and you get y= 7/4 * 14 = 49/2 = 24.5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but in other cases if it wasn't a 0 would it be necessary?

phi
 one year ago
Best ResponseYou've already chosen the best response.1if you were given the equation y= (7/4) x and were asked what is the yintercept you would want to match up your equation with y= mx + b we can match 7/4 with m, but there is nothing to match b we can "fix" that by writing y= (7/4) x + 0 (+0 does not change the equation) and now we can match b with 0 that is an example of why you might write down +0 but usually, we don't bother

phi
 one year ago
Best ResponseYou've already chosen the best response.1if the y intercept is not 0, then you definitely would have to write it down

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay got it im just gonna always include the 0 to be on the safe side.

phi
 one year ago
Best ResponseYou've already chosen the best response.1I would just add it "mentally" (i.e. not write it down) you also have the same thing with multiplying and "1" for example y = x+2 if we match that with y= mx + b we see b is 2 but what is m? We write in y= 1*x + 2 now it is clear that m is 1 but usually we don't write y= 1x+2 instead we write y= x+2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohhh okay got it thanks phi!
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