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September 15, 2025, 01:34:23 am
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Author Topic: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7  (Read 1362 times)  Share 

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chuckjefster90

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Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« on: April 25, 2010, 12:17:35 pm »
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Hey Guys,
This is a silly question but:
Is y=7-5x
the samre as y= -5x + 7   OR y= -5x - 7 ????

Thanks
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superflya

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Re: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« Reply #1 on: April 25, 2010, 12:18:49 pm »
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y=7-5x is the same as y=-5x+7. theres a +ve infront of the 7.
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m@tty

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Re: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« Reply #2 on: April 25, 2010, 12:19:33 pm »
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In your alternative you have changed 7 from positive to negative.
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vea

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Re: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« Reply #3 on: April 25, 2010, 02:52:06 pm »
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It is the same as the first option you've listed.
The other option you've listen has a y-intercept of -7 instead of 7 and you can check and see the difference by sketching the two graphs :)
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Yitzi_K

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Re: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« Reply #4 on: May 01, 2010, 07:16:45 pm »
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Alternatively it could be written
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naved_s9994

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Re: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« Reply #5 on: May 01, 2010, 07:18:14 pm »
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Quote from: superflya on April 25, 2010, 12:18:49 pm
y=7-5x is the same as y=-5x+7. theres a +ve infront of the 7.

sub in a value, and see if its the same :)
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TrueTears

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Re: Silly Question - Just need Clarification - is y=7-5x the same as y=-5x-7
« Reply #6 on: May 01, 2010, 07:56:18 pm »
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yea implied addition
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