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May 4th, 2015, 05:00 AM   #1
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Help find the gradient and the y-intercept

find the gradient and the y-intercept of this please

y=4x-6

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I don't know how to do it
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May 4th, 2015, 05:34 AM   #2
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I figured out how to do it
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May 5th, 2015, 01:56 AM   #3
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I figured out how to do it
Good job!
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May 6th, 2015, 01:47 PM   #4
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I would imagine any textbook that uses "y= ax+ b" as a standard form (the "slope-intercept" form) would also say that "a" is the gradient and "b" is the y-intercept.
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May 6th, 2015, 06:49 PM   #5
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I would imagine any textbook that uses "y= ax+ b" as a standard form (the "slope-intercept" form) would also say that "a" is the gradient and "b" is the y-intercept.
Not quite. In my country, they do say that "a" is the gradient but never say that "b" is the y-intercept, making students waste their time substituting x = 0 to the equation.
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May 6th, 2015, 08:18 PM   #6
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Not quite. In my country, they do say that "a" is the gradient but never say that "b" is the y-intercept, making students waste their time substituting x = 0 to the equation.
Which country do you belong to?

Last edited by skipjack; May 6th, 2015 at 10:08 PM.
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May 7th, 2015, 05:12 AM   #7
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Surely it doesn't waste a great deal of time to multiply by 0! And after the first time doing that, you would know the y-intercept of y= ax+ b is b. All your country is doing is helping the students discover it for themselves.
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May 7th, 2015, 07:19 PM   #8
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Which country do you belong to?
Indonesia.

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Originally Posted by Country Boy View Post
Surely it doesn't waste a great deal of time to multiply by 0! And after the first time doing that, you would know the y-intercept of y= ax+ b is b. All your country is doing is helping the students discover it for themselves.
Well, actually I'm glad they didn't spoil the students by just doing that.
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Last edited by Monox D. I-Fly; May 7th, 2015 at 07:22 PM.
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