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mathcalculus
Group Title
I DON'T UNDERSTAND WHY MY ANSWER IS NOT CORRECT :( SLOPE IS 9/11 AND THE
EQUATION IS 9X/11+44
Find the equation of the line parallel to 9x11y=2 and passing through the point (5,1).
The equation of the line is ??
 one year ago
 one year ago
mathcalculus Group Title
I DON'T UNDERSTAND WHY MY ANSWER IS NOT CORRECT :( SLOPE IS 9/11 AND THE EQUATION IS 9X/11+44 Find the equation of the line parallel to 9x11y=2 and passing through the point (5,1). The equation of the line is ??
 one year ago
 one year ago

This Question is Closed

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
The slope of 9x11y=2 is 9/11 So plug that slope and the given point into pointslope form: \[yy _{1}=m(xx _{1})\]
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i did..
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
@mathcalculus you did your algebra incorrectly, it appears...
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
can you point it out where?
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
\[y(1)=\frac{9}{11}(x5)\]
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
Simplify and you will be done.
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i have this: y=9x/11 +44
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
your yintercept value will be a fraction...maybe you didn't multiply the 9/11 when expanding
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
@whpalmer4 i'm not sure where I have made my mistake.
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
\[1+y = \frac{1}{11}(459x)\]probably screwed up bringing the 1 across
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
\[y+1=\frac{9}{11}x+\frac{45}{11}\]
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
isn't y (1) a y+1?
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
so if i bring it to the other side it must be subtracted from the 45
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
oh yes! got it
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
9/11 * 5
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
\[y=\frac{9}{11}x+\frac{45}{11}1=\frac{9}{11}x+\frac{34}{11}\]
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
subtract 11/11 from each side: \[y+1  11/11 = \frac{1}{11}{45119x}\]\[y = \frac{1}{11}(349x)\]\[y = \frac{9x}{11}+\frac{34}{11}\]
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
whoops, used invisible () in that first eq. :)
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
that's not the answer..... :(
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
it keeps saying it's wrong.
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i think it's the website, it must be correct. thank you everyone.
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
well, that in fact is the equation of a line parallel to the original line, passing through 5,1 as you can see in this graph:
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
Check the rules for entry. Maybe you are entering the fractions incorrectly or maybe you are not supposed to write y = or maybe they want the equation in some other form besides slopeintercept form.
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
(5,1) that is
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
yes, I checked. appreciate the help
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
it must be correct, even the calculator shows it.
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
Maybe you want to try 9x+11y=34
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
I'll sometimes multiply by the denominator of the fraction, do the problem without the pesky fractions and accompanying mistakes, then divide again by the former denominator for the final answer.
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
I'd say you know what you're doing, in any case...watch for those fraction mistakes :)
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
thanks alot ! :)
 one year ago
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