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secondary 3 | E Maths
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Hi I really don’t understand the answer for qn (ii) why the ans is -2 pls explain clearly much thx
Date Posted: 4 years ago
Views: 240
no wonder u r confused
u wrote (in green) " ∴ the largest value of y is -2. "
the qn asks for the largest integer.
integers are numbers that do not have decimals, fractions and include the negative numbers (unlike whole numbers) .
*note:
reference for u on integers & whole numbers:
https://www.mathsisfun.com/whole-numbers.html
since ur ans in (b)(i) is : y ⩽ -1⅖ ;
and -1⅖ is a rational number that is between the integers -1 & -2 ,
the largest integer cannot be -1 since y is LESS than -1⅖ .
hence, the largest integer is -2 .
*note:
an integer can be a whole number
but
a whole number may not be an integer
u wrote (in green) " ∴ the largest value of y is -2. "
the qn asks for the largest integer.
integers are numbers that do not have decimals, fractions and include the negative numbers (unlike whole numbers) .
*note:
reference for u on integers & whole numbers:
https://www.mathsisfun.com/whole-numbers.html
since ur ans in (b)(i) is : y ⩽ -1⅖ ;
and -1⅖ is a rational number that is between the integers -1 & -2 ,
the largest integer cannot be -1 since y is LESS than -1⅖ .
hence, the largest integer is -2 .
*note:
an integer can be a whole number
but
a whole number may not be an integer
Thank u so much ur explanation is great!
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