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.
ປັດຈຸບັນທ່ານ ບໍ່ມີເຄື່ອງຄິດໄລ່ທີ່ຈະແກ້ໄຂບັນຫານີ້ໄດ້, ແຕ່ສ່ວນຂອງມັນສາມາດຄິດໄລ່ໄດ້. ພະຍາຍາມອັນໃດອັນໜຶ່ງຂ້າງລຸ່ມນີ້ ຫຼື ພິມຕົວເອງເອງ.
ຕົວສະແດງທີ່ໃຊ້ຢູ່ທີ່ນີ້
ກົດຕົວອັກສອນໃດໜຶ່ງເພື່ອເບິ່ງຄວາມໝາຍເຕັມ, ຮູບ ແລະ ຕົວອັກສອນແຕ່ລະຕົວໃນມັນໝາຍຄວາມວ່າແນວໃດ.
ຄໍາຖາມທີ່ຄົນຖາມ
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.
ບາງສ່ວນຂອງ ໜ້າ ນີ້ ຖືກປັບແຕ່ງຈາກ OpenStax Prealgebra 2e (CC BY-NC-SA 4.0). ຖືກປະສົມປະສານແລະອະທິບາຍຄືນໃໝ່ທີ່ນີ້; ຄວາມຜິດພາດແມ່ນຂອງເຮົາ.
ເພີ່ມເຕີມໃນ Algebra
Linear equationsQuadratic equationsSystems of equationsInequalitiesFactoringExpandingSimplifying expressionsFunctions and graphsExponential and logarithmic equationsPolynomial equationsAbsolute value