2007-05-25 12:39:37 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
When x is directly proportional to y,we mean that the vlue of x increases or decreases as the value of y increases or decreases.
It is written as x=ky,where 'k'is a constant
when the value of x decreases when the value of y increases or vice-versa,we say that the x is inversely proportional to y.In this case,x varies as 1/y or x=k/y,where 'k' is a constant.
2007-05-25 12:54:01 · answer #1 · answered by alpha 7 · 2⤊ 1⤋
Directly Proportional
2016-09-30 13:17:19 · answer #2 · answered by alia 4 · 0⤊ 0⤋
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RE:
Write the formula for directly proportional & inversely proportional formulas using x,x,y,y?
2015-08-07 00:10:42 · answer #3 · answered by Anonymous · 0⤊ 0⤋
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when y is inversely proportional to the x it can be written as y = k / x where k is proportionality constant when y = 6 and x = 4 k = y * x = > k = 6 * 4 = 24 therefore k = 24 when y = 8 then y = k / x => x = k / y = 24 / 8 = 3 therefore ( x , y ) = ( 8 , 3 )
2016-04-02 06:59:19 · answer #4 · answered by Anonymous · 0⤊ 0⤋
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2013-12-27 18:23:16 · answer #5 · answered by Anonymous · 0⤊ 1⤋
These are supposed to be different pairs of (x,y), but let's go with this:
Direct proportion:
y/x = y/x
Inverse proportion:
xy = xy
2007-05-25 12:46:30 · answer #6 · answered by Kathleen K 7 · 0⤊ 1⤋
Directly proportional
y = k.x where k is a constant.
Inversely prportional
y = (1/k).x where k is a constant
2007-05-27 07:12:26 · answer #7 · answered by Como 7 · 0⤊ 1⤋
directly proportional:
y = k/x where k is a constant
indirectly proportinal:
y = kx
2007-05-25 12:46:20 · answer #8 · answered by flit 4 · 0⤊ 1⤋
Direct; y = kx
Inversely; y = k/x
2007-05-25 12:47:56 · answer #9 · answered by richardwptljc 6 · 0⤊ 1⤋
directly y1/x1 =y2/x2
inversely y1/x2 =y2/x1
2007-05-25 13:54:28 · answer #10 · answered by bigennice5 1 · 0⤊ 0⤋