A. ax+b=0 B. ax²+bx+c=0 C. ax³+bx²+cx+d=0 D. ax⁴+bx³+cx²+dx+e=0 相关知识点: 试题来源: 解析 B。“quadratic equation”是二次方程,其形式为 ax²+bx+c=0。选项 A 是一元一次方程。选项 C 是三次方程。选项 D 是四次方程。反馈...
结果1 题目 38. The roots of a quadratic equation are -5 and, form the equation in the form ax^2+bx+c=0 , where a, b and c are constants.4x^2+17x-15=0 相关知识点: 试题来源: 解析 4x²+17x-15=0 反馈 收藏
A. 3x + 5 = 0 B. 2x²+ 3x - 5 = 0 C. 4x³ - 2x²+ 1 = 0 D. 1/x + 2 = 0 相关知识点: 试题来源: 解析 B。解析:二次方程(quadratic equation)的一般形式是ax²+bx + c = 0(a≠0),选项B符合这个形式。选项A是一次方程。选项C是三次方程,因为最高次项是x³。选项D...
3. the product of x and y . The product of the (two) roots of a quadratic equation ax^2+bx+c=0 equals the constant c divided by the quadratic coefficient a, i.e. \dfrac{c}{a} . 4. 除法(Division) Division is the inverse operation of multiplication. 12\div 4=3 means when 12...
解析 A。二次函数顶点式为 y = a(x - h)² + k,顶点坐标为(h,k)。已知顶点为(2,3),所以 h = 2,k = 3,又因为开口向上,a>0,只有 A 选项符合。B 选项顶点坐标为(-2,3)不符合。C 选项开口向下不符合。D 选项顶点坐标为(-2,3)且开口向下不符合。
A linear equation has the form of mx + b, while a quadratic equation's form is ax2+bx+c. Also, a linear equation's graph forms a line, while a quadratic equation's graph forms a parabola. A quadratic equation in standard form is written ax2 plus bx equals c where a b and c ar...
Englishquad‧rat‧ic e‧qua‧tion/kwɒˌdrætɪk ɪˈkweɪʒən$kwɑː-/noun[countable]technicalanequationsuch ax²+by+c=z, which includes numbers orquantitiesmultipliedby themselvesExamples from the Corpusquadratic equation•One boy wassolvingaquadratic equation, another ...
百度试题 结果1 题目Both roots of the quadratic equation x2−63x+k=0 are prime numbers. The number of possible values of k is( ). A.0 B.1 C.2 D.4 E.more than 4 相关知识点: 试题来源: 解析 B 反馈 收藏
4) make sure you write the final version of the equation (only variables should be x and y) Vertex Form of the Quadratic Function: y = a(x-h) + k or f(x) = a(x-h) + k 2 2 Vertex is ( 3 , -2) 3...what makes bracket (partial factor) zero...the “h” -2... th...
Move the a, b and c slider bars to explore the properties of the quadratic graph.Look atThe effect of changes in a The effect of changes in b The effect of changes in c The effect of negative values of a The effect of positive values of a What happens when a=0 ? See if you ...