【题目】 有3道英语的数学题1.If f(r) is a linear function with a positive or negative slope,what will the domain and ra nge of this function be?2. Find the domain and range of each functio n. Erplain your answer.f(r)=-2(
(f(x)) is a linear function and is a constant. Under which of the following conditions is the slope of (f(x)) greater than the slope of (f(rx))? ()Ⅰ. (f(x)) is ascending and < 1Ⅱ. (f(x)) is descending and 0≤ < 1Ⅲ. (f(x)) is descending and > 1A. Ⅰ only...
解得：k=4，b= -3 ∴f(x)=4x-3 线性函数（linear function)设为y=kx+b 代入f(2)=5 and f(4)=13,2k+b=5 4k+b=13 k=4 b=-3f(x)=4x-3
Is it possible that a linear relationship can have three variables? Answer and Explanation: Yes. Consider any function of three variables. For example: r = ax + by + cz where a,b,c, and r are all constants (ie - numbers). The solutions to... ...
Moreover, one of the common descriptions of the derivative as a tangent line implies that they considered the 'derivative' as a point-specific object but also a (linear) function defined on an interval. This description was closely related to their use of the word, 'derivative' for both '...
It is given that the graph of a linear function passes through the points A(-3, 2) and B(1,6).(1) Find an analytical expression of this function and draw the graph.(2) Find the are a of the triangle formed by the graph of the function and the two axes. 相关知识点: 试题来...
A continuous-time LTI system can be described by its system function H(s), and it is known that the frequency response H(jω) exists, then the system must be ( ).A. time-invariantB. causalC. stableD. linear 相关知识点: 试题来源: 解析 C 题目中已知连续时间LTI系统的系统函数为H(s),...
The linearity, in the linear regression models, refers to the linearity of the coefficients βk. That is, the response variable, y, is a linear function of the coefficients, βk. Some examples of linear models are:yi=β0+β1Xi1+β2Xi2+β3Xi3+εiyi=β0+β1Xi1+β2Xi2+β3X3i1...
Answer to: For the following linear transformation, determine whether it is one-to-one, onto, both, or neither. T : R3 to R2, T (a, b, c) = (a +...
To solve the problem, we need to find the value of (f(9)−f(7))/2 given that f is a linear function and we know two points on this function: f(5)=−2 and f(11)=28. Step 1: Define the linear functionA linear function can be expressed in the form:f(x)=ax+bwhere a ...