Find the value of Δx for which the value of Δy/Δx is within 0.1 units of slope.












0












$begingroup$


Here is the link for the problem that I am trying to solve:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/



The problem is 1c in the pdf:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/MIT18_01SCF10_ex01sol.pdf



The final solution is next:



$$-0.08 le Delta x le 0.10$$



As I understand this is the formula for this problem where m is the slope:



$$-0.1m le frac{Delta y}{Delta x} le 0.1m$$



But I can't understand why the numbers on each end are different. Appreciate any help.










share|cite|improve this question











$endgroup$












  • $begingroup$
    Please try to make the titles of your questions more informative. For example, Why does $a<b$ imply $a+c<b+c$? is much more useful for other users than A question about inequality. From How can I ask a good question?: Make your title as descriptive as possible. In many cases one can actually phrase the title as the question, at least in such a way so as to be comprehensible to an expert reader. You can find more tips for choosing a good title here.
    $endgroup$
    – Shaun
    Dec 8 '18 at 12:53










  • $begingroup$
    Here's what I see. Please use MathJax. If you're unsure of what code to use for a symbol, try Detexify.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:14










  • $begingroup$
    Please try now.
    $endgroup$
    – Oleg
    Dec 8 '18 at 13:16










  • $begingroup$
    That's better. Thank you.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:18
















0












$begingroup$


Here is the link for the problem that I am trying to solve:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/



The problem is 1c in the pdf:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/MIT18_01SCF10_ex01sol.pdf



The final solution is next:



$$-0.08 le Delta x le 0.10$$



As I understand this is the formula for this problem where m is the slope:



$$-0.1m le frac{Delta y}{Delta x} le 0.1m$$



But I can't understand why the numbers on each end are different. Appreciate any help.










share|cite|improve this question











$endgroup$












  • $begingroup$
    Please try to make the titles of your questions more informative. For example, Why does $a<b$ imply $a+c<b+c$? is much more useful for other users than A question about inequality. From How can I ask a good question?: Make your title as descriptive as possible. In many cases one can actually phrase the title as the question, at least in such a way so as to be comprehensible to an expert reader. You can find more tips for choosing a good title here.
    $endgroup$
    – Shaun
    Dec 8 '18 at 12:53










  • $begingroup$
    Here's what I see. Please use MathJax. If you're unsure of what code to use for a symbol, try Detexify.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:14










  • $begingroup$
    Please try now.
    $endgroup$
    – Oleg
    Dec 8 '18 at 13:16










  • $begingroup$
    That's better. Thank you.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:18














0












0








0





$begingroup$


Here is the link for the problem that I am trying to solve:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/



The problem is 1c in the pdf:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/MIT18_01SCF10_ex01sol.pdf



The final solution is next:



$$-0.08 le Delta x le 0.10$$



As I understand this is the formula for this problem where m is the slope:



$$-0.1m le frac{Delta y}{Delta x} le 0.1m$$



But I can't understand why the numbers on each end are different. Appreciate any help.










share|cite|improve this question











$endgroup$




Here is the link for the problem that I am trying to solve:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/



The problem is 1c in the pdf:



https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/MIT18_01SCF10_ex01sol.pdf



The final solution is next:



$$-0.08 le Delta x le 0.10$$



As I understand this is the formula for this problem where m is the slope:



$$-0.1m le frac{Delta y}{Delta x} le 0.1m$$



But I can't understand why the numbers on each end are different. Appreciate any help.







derivatives inequality slope






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share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Dec 8 '18 at 13:16







Oleg

















asked Dec 8 '18 at 12:49









OlegOleg

1023




1023












  • $begingroup$
    Please try to make the titles of your questions more informative. For example, Why does $a<b$ imply $a+c<b+c$? is much more useful for other users than A question about inequality. From How can I ask a good question?: Make your title as descriptive as possible. In many cases one can actually phrase the title as the question, at least in such a way so as to be comprehensible to an expert reader. You can find more tips for choosing a good title here.
    $endgroup$
    – Shaun
    Dec 8 '18 at 12:53










  • $begingroup$
    Here's what I see. Please use MathJax. If you're unsure of what code to use for a symbol, try Detexify.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:14










  • $begingroup$
    Please try now.
    $endgroup$
    – Oleg
    Dec 8 '18 at 13:16










  • $begingroup$
    That's better. Thank you.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:18


















  • $begingroup$
    Please try to make the titles of your questions more informative. For example, Why does $a<b$ imply $a+c<b+c$? is much more useful for other users than A question about inequality. From How can I ask a good question?: Make your title as descriptive as possible. In many cases one can actually phrase the title as the question, at least in such a way so as to be comprehensible to an expert reader. You can find more tips for choosing a good title here.
    $endgroup$
    – Shaun
    Dec 8 '18 at 12:53










  • $begingroup$
    Here's what I see. Please use MathJax. If you're unsure of what code to use for a symbol, try Detexify.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:14










  • $begingroup$
    Please try now.
    $endgroup$
    – Oleg
    Dec 8 '18 at 13:16










  • $begingroup$
    That's better. Thank you.
    $endgroup$
    – Shaun
    Dec 8 '18 at 13:18
















$begingroup$
Please try to make the titles of your questions more informative. For example, Why does $a<b$ imply $a+c<b+c$? is much more useful for other users than A question about inequality. From How can I ask a good question?: Make your title as descriptive as possible. In many cases one can actually phrase the title as the question, at least in such a way so as to be comprehensible to an expert reader. You can find more tips for choosing a good title here.
$endgroup$
– Shaun
Dec 8 '18 at 12:53




$begingroup$
Please try to make the titles of your questions more informative. For example, Why does $a<b$ imply $a+c<b+c$? is much more useful for other users than A question about inequality. From How can I ask a good question?: Make your title as descriptive as possible. In many cases one can actually phrase the title as the question, at least in such a way so as to be comprehensible to an expert reader. You can find more tips for choosing a good title here.
$endgroup$
– Shaun
Dec 8 '18 at 12:53












$begingroup$
Here's what I see. Please use MathJax. If you're unsure of what code to use for a symbol, try Detexify.
$endgroup$
– Shaun
Dec 8 '18 at 13:14




$begingroup$
Here's what I see. Please use MathJax. If you're unsure of what code to use for a symbol, try Detexify.
$endgroup$
– Shaun
Dec 8 '18 at 13:14












$begingroup$
Please try now.
$endgroup$
– Oleg
Dec 8 '18 at 13:16




$begingroup$
Please try now.
$endgroup$
– Oleg
Dec 8 '18 at 13:16












$begingroup$
That's better. Thank you.
$endgroup$
– Shaun
Dec 8 '18 at 13:18




$begingroup$
That's better. Thank you.
$endgroup$
– Shaun
Dec 8 '18 at 13:18










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