y = 1/x D. y = x^3 + 2 相关知识点: 试题来源: 解析 B。本题考查二次函数的定义。二次函数的一般式为 y = ax^2 + bx + c(a ≠ 0)。选项 A 是一次函数,选项 C 是反比例函数,选项 D 是三次函数,只有选项 B 符合二次函数的形式。
1 It is given that the quadratic functio y=x^2+bx+cpasses through the points A(2, 2) and B(5,2).(1)Find the values of band c; (2)find the coordinates of a point Cat which the graph of the function intersects the x-axis ; and (3) find the are a of S△ABC. ...
function: A function is a relation between two sets which maps one element to one and only one element in another set. It is represented byf(x)wherexis the independent variable. Answer and Explanation:1 A quadratic function or a quadratic polynomial is a polynomial expression with the highest...
Quadratic Function f(x)=x2f(x)=x2 Increasing on (0,∞)(0,∞) Decreasing on (−∞,0)(−∞,0) Minimum at x=0x=0 Cubic Function f(x)=x3f(x)=x3 Increasing Reciprocal f(x)=1xf(x)=1x Decreasing (−∞,0)∪(0,∞)(−∞,0)∪(0,∞) R...
A quadratic function is f(x)=x2+6x−7. Express the function f(x) in the standard form f(x)=a(x−h)2+k. Parabola: The path taken by a moving point along which its separation from both a fixed point and a fixed straight line is always...
A. x = -1 B. x = -2 C. x = -3 D. x = -4 相关知识点: 试题来源: 解析 A。解析:For the function y = 3x² + 6x + 2, a = 3 and b = 6. Using the formula x = -b/2a, we get x = -6/(2*3) = -1.反馈...
(b) Here is a sketch of the graph of a quadratic function.V NOT TO SCALE(p,q)8204X The curve has a maximum point (p, q).Find the value of p and the value of q.(X-1)^2 19...+ 相关知识点: 试题来源: 解析 (x-1)²19M1 for y=(4-x)(x+2)oe ory=q-(x-1)²...
If {eq}f{/eq} is a quadratic function such that {eq}f(0)=1{/eq} and {eq}\int \frac{f(x)}{x^2(x+1)^3}\ dx{/eq} is a rational function, find the value of {eq}f'(0).{/eq} Antiderivatives To have an antiderivat...
If a<0a<0, the parabola opens downward, and the vertex is a maximum. Figure 5 is the graph of the quadratic function written in standard form as y=−3(x+2)2+4y=−3(x+2)2+4. Since x−h=x+2x−h=x+2 in this example, h=−2h=−2. In th...
函数中的一个基本概念是图像,它是输入和输出之间关系的可视化表示。函数的图像在坐标系上绘制,其中输入值表示在x轴上,输出值表示在y轴上。 函数在问题解决和决策过程中起着至关重要的作用。它们允许我们基于已知的输入和规则进行分析和预测。通过函数,我们可以对真实...