Graphs
Which cyclist will win the race? What will the winning time be? How many seconds will separate the winner from the runner-up? One way to summarize the information from the race is by creating a graph. In this chapter, we will discuss the basic concepts of graphing. The applications of graphing go far beyond races. They are used to present information in almost every field, including healthcare, business, and entertainment.
حالا تو هیچ ماشین حسابی این را حل نمیکند ، اما تکههای آن قابل محاسبه هستند. یکی از زیر را امتحان کنید ، یا خودتان را تایپ کنید.
نمادهای استفادهشده در اینجا
هر نماد را برای تعریف کامل، تصویر و معنی هر حرف در آن بزنید.
سوالاتي که مردم ميپرسن
What does it mean to solve an equation?
To find every value of the unknown that makes both sides equal. Each step is an operation applied to both sides that keeps the solution set the same, until the unknown stands alone.
Why do I sometimes get two answers?
A quadratic can cross the axis twice, so it can have two solutions. A degree-n polynomial has up to n. The graph shows where each one comes from.
How do I know whether to factor or use the quadratic formula?
Try factoring for a few seconds: look for two numbers that multiply to a·c and add to b. If nothing obvious appears, the discriminant b² − 4ac tells you how many real roots there are, and the formula finds them without guessing.
این صفحه از این مقاله اقتباس شدهاست. OpenStax Prealgebra 2e (CC BY-NC-SA 4.0). این گزاره را میتوان به صورت زیر بیان کرد: اشتباهات ما، اشتباهات ما هستند.
بیشتر در Algebra
Linear equationsQuadratic equationsSystems of equationsInequalitiesFactoringExpandingSimplifying expressionsFunctions and graphsExponential and logarithmic equationsPolynomial equationsAbsolute value