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Old 07-25-2007   #1
Miss T.
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Default Anyone good with Algebra??

What is the "X" intercept of 4y-12=28x?I found the "Y" intercept... no problem. I see the 28x and I'm not sure how to get rid of the 28 and still keep both sides equal. I'm sure I'd have to divide since "28x" is multiplication... I'm just not sure where to go from there. Solve and explain, pleassssssse.
Old 07-25-2007   #2
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Just plug in 0 for y
Old 07-25-2007   #3
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to find y intercept, you take x = 0then 4y - 12 = 04y = 12y = 3to find x intercept, simply set y=0-12 = 28xx = -12/28x = -3/7
Old 07-25-2007   #4
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x= (4y-12) /28 or (y-3)/7
Old 07-25-2007   #5
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the first thing to do is find Ythen take 28 and divide it by 4the # that was 28 divide it form both sidesthen take the # that is now Y and subtract it from both sides then add 12 to both sides because it is a negativeYou should now have your answer X

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