The graph of an exponential function y = a * 2^x passes through the point (2, 16). What is the value of a? A. 2 B. 4 C. 6 D. 8 相关知识点: 试题来源: 解析 B。将点(2,16)代入函数可得 16 = a * 2^2,解得 a = 4。选项 A、C、D 不符合条件。
A real life example of exponential decay is radioactive decay. The graph crosses the y-axis, but not the x-axis. Properties of the exponential functionIf y = abx, a > 0 b > 0, the exponential graph has the following properties:
An exponential function's general form is: {eq}f(x) = b^x {/eq} Wherein {eq}x = \text{a variable} {/eq} {eq}b = \text{a constant greater than 0... Learn more about this topic: Exponential Function | Definition, Equation & Examples ...
Figure 4. The graph of f(x)=2.4492(0.6389)xf(x)=2.4492(0.6389)x models exponential decay. Try It 4 Given the two points (1,3)(1,3) and (2,4.5)(2,4.5), find the equation of the exponential function that passes through these two points. Solution Q & A Do two p...
To determine the points on the Y-Axis, we use the Exponent of the base of the exponential function. For example, let us graph the function f(x)= 2^x, where the base of this function is 2 and the Exponent is 'x'. When the Exponent of the base is equal to -1, then Y=1/2,...
Two functions arecomplementaryif one function equals 1 when the other function equals 0 and vice versa. The complement of a function can be found by complementing each literal in the dual of that function. Thus the complement off(A,B,C,D) =ABC¯+CD+B¯is ...
The exponential function. There are several important properties of the exponential function, as exhibited in the graph in Fig. 2.5. • For large values of x, the exponential function becomes large very rapidly. • For large negative values of x, the exponential function becomes small very ...
Finally, we suppose the dropout rate of each gene follows a double exponential function exp(−0.1 × mean expression2), as assumed in15. Zero values are then introduced into the simulated data for each gene based on a Bernoulli distribution defined by the dropout rate of the gene, ...
It is the inverse function only if the domain of the sine function is limited to –π/2 ≤ x≤π/2. Thus, sin−l (sin(x)) = x if x lies within the limits given above and sin(sin−l (x)) = x if −1 ≤ x≤ 1. The graph of y = sin−l (x) is given in ...
(A) Bayesian network representing the joint distribution of y and its parents; (B) factor graph for a logistic regression for the conditional distribution of y given its parents. Let us assume that all variables are binary. Given a separate function fi(y,xi) for each binary variable xi, ...