線性函式通常以 f ((x) = ax + b 這個形式寫成. 這條直線的梯度是依賴變數的變化速率. 這也被稱為"斜率". 這裡的"b"代表"y"軸的交叉點. 這就是依賴變數y的值, 舉例來說, 我們有個函式 f (x) =x+5. 這是標準形式的線性函式. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/85\/Do-Linear-Functions-Step-1Bullet1-Version-2.jpg\/v4-460px-Do-Linear-Functions-Step-1Bullet1-Version-2.jpg","Urbigl":"\/images\/thumb\/8\/85\/Do-Linear-Functions-Step-1Bullet1-Version-2.aid-2.jpg\/4531126-v4-728px-Do-Linear-Functions-Step-1Bullet1-Version-2.jpg","smallth":40,"Height":345,"Wbigth":37",bigth"28","Height":46","5","","parent"="parent"="parent"="parent"="parent"="parent"="parent"="parent" hmw-output" class-1Bullet1-Version-2.jpg\/ 沒有任何問題, 在上面的例子中, 你可能會選擇使用 -1,0和1來表示x值. 解決方式如下. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/7b\/Do-Linear-Functions-Step-2Bullet1-Version-2.jpg\/v4-460px-Do-Linear-Functions-Step-2Bullet1-Version-2.jpg","bigUrl":"\/images\/thumb/7\/7b\/Do-Linear-Functions-Step-2Bullet1-Version-2.jpg/aid\4531126-v4-728px-Do-Linear-Functions-Step-2Bullet1-Version-2.jpg","smallWidth":460,"smallHeight":45,"Wbigth":7",bigHeight":"5",46","<div>"<div>"<div>"<div>"<n>"<n>"<n>"<n>"<n>"<n>"<n>"<n>"<n>"<n><n> 在上面的例子中,您的圖表會看起來像這樣. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/f2\/Do-Linear-Functions-Step-3Bullet1-Version-2.jpg\/v4-460px-Do-Linear-Functions-Step-3Bullet1-Version-2.jpg","bigUrl":"\/images\/thumb\/f\/f2\/Do-Linear-Functions-Step-3Bullet1-Version-2.jpg\/aid/4531126-v428-7px-Do-Linear-Functions-Step-3Bullet1-Version-2.jpg","smallthumb:46",CreativeHeight:36",div"45,"bigthumb":"28","","Height7","46","creativeHeight5","creative"h-Linear-Functions-Step-3Bullet1-Version-2.jpg",<br/><br/>" 透過線條將他們連線在一起. 如果三個點並不在同一條直線上, 請您繼續閱讀更多來自 在上面的例子中,您的圖表會看起來像這樣. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/25\/Do-Linear-Functions-Step-4Bullet1-Version-2.jpg\/v4-460px-Do-Linear-Functions-Step-4Bullet1-Version-2.jpg","bigUrl":"\/images\/thumb\/2\/25\/Do-Linear-Functions-Step-4Bullet1-Versionjpg\/aid4531126-v4-728px-Do-Linear-Functions-Step-4Bullet1-Version-2.jpg","smallWth":40,"smallHeight":35,"bigWth":45,"bigWth":28","7","Height":5","46","parent":"parent":"parent":"parent"<n">">"<p>"<p>"<p>"<p>"<p  這是什麼?
這裡是一個線性函式的標準形式. 找到至少兩點. 圖示出這些點. 聯絡這些點.