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中四Variation問題
發問:
Express the following variation statement by an equation , using a, b, h or k to represent constants.1. z is partly constant and partly varies directly as x.2. P is partly constant and partly varies inversely as the square root of t.3. Y partly varies directly as u and partly varies directly as... 顯示更多 Express the following variation statement by an equation , using a, b, h or k to represent constants. 1. z is partly constant and partly varies directly as x. 2. P is partly constant and partly varies inversely as the square root of t. 3. Y partly varies directly as u and partly varies directly as v. 所以唔知點寫條式出黎－－ 唔該要有詳細文字解釋點寫條式
最佳解答:
1.Z=a+kx 2.P=b+h/√(t) 3.Y=au+kv 這是部分比的問題 1. z is partly constant and partly varies directly as x. 即z一部份是constant , 一部份是正比於x 而中間要將兩部份加起來,即是 Z=a+kx 2. P is partly constant and partly varies inversely as the square root of t. 同第一題一樣 , 不過注意square root 即係√(t) P=b+h/√(t) 3. Y partly varies directly as u and partly varies directly as v. 一部份正比於u , 一部份正比於v 技巧跟第1,2題一樣的 Y=au+kv
Answer: 1. z = a + kx 2. P = a + k/(t^2) 3. Y = au + bv 逢見到 partly 呢個字就用「+」(代表條式由兩部分組成) 例子: Let a, b be the constants. x varies directly y : x = ay x varies inversely as y : x = a/y x partly varies directly as y and partly varies directly as z = x = ay + bz 如果佢話 'is a constant' 咁就淨係寫 constant 個字母代表就得|||||1. z=(k1) + (k2)x where K1 and k2 are not equal to 0 2. P = (k1) + (k2)/sqrt (t) where K1 and k2 are not equal to 0 3. Y = (k1)u + (k2)v where K1 and k2 are not equal to 0
中四Variation問題
發問:
Express the following variation statement by an equation , using a, b, h or k to represent constants.1. z is partly constant and partly varies directly as x.2. P is partly constant and partly varies inversely as the square root of t.3. Y partly varies directly as u and partly varies directly as... 顯示更多 Express the following variation statement by an equation , using a, b, h or k to represent constants. 1. z is partly constant and partly varies directly as x. 2. P is partly constant and partly varies inversely as the square root of t. 3. Y partly varies directly as u and partly varies directly as v. 所以唔知點寫條式出黎－－ 唔該要有詳細文字解釋點寫條式
最佳解答:
1.Z=a+kx 2.P=b+h/√(t) 3.Y=au+kv 這是部分比的問題 1. z is partly constant and partly varies directly as x. 即z一部份是constant , 一部份是正比於x 而中間要將兩部份加起來,即是 Z=a+kx 2. P is partly constant and partly varies inversely as the square root of t. 同第一題一樣 , 不過注意square root 即係√(t) P=b+h/√(t) 3. Y partly varies directly as u and partly varies directly as v. 一部份正比於u , 一部份正比於v 技巧跟第1,2題一樣的 Y=au+kv
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其他解答:Answer: 1. z = a + kx 2. P = a + k/(t^2) 3. Y = au + bv 逢見到 partly 呢個字就用「+」(代表條式由兩部分組成) 例子: Let a, b be the constants. x varies directly y : x = ay x varies inversely as y : x = a/y x partly varies directly as y and partly varies directly as z = x = ay + bz 如果佢話 'is a constant' 咁就淨係寫 constant 個字母代表就得|||||1. z=(k1) + (k2)x where K1 and k2 are not equal to 0 2. P = (k1) + (k2)/sqrt (t) where K1 and k2 are not equal to 0 3. Y = (k1)u + (k2)v where K1 and k2 are not equal to 0
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