The composite functions of higher math often use h(x) and g(x), in combination,,defining which comes first, and which is second. The substitution is bad enough, but using y's would make it worse.. In summary, feel free to immediately use "y =" instead of "h(x)", if it clarified the problem.

2011年4月30日 · g(x) just identifies a function of x, in the same way as that f(x) does. Using a "g" instead of an "f" only means the function has a different label assigned to it. Typically this is done where you have already got an f(x), so creating another one would be confusing. you can use any letter you like (i wouldn't use x, though): eg: f(x) = 2x+1 g ...

since g(x) = x^2 + 3, you get: f(g(x)) = sqrt(x^2 + 3) + 8 when x = 3, you get: f(g(x)) = sqrt(3^2 + 3) + 8 = 11.46410162 this is equivalent to finding g(x) first and then finding f(g(x)). g(x) = x^2 + 3. when x = 3, g(x) = 3^2 + 3 = 12. f(g(x)) becomes f(12) = sqrt(12) + 8 = 11.46410162. f(x) and g(x) are repeated here to make them easier to ...

2010年3月11日 · Life is much much easier if you just use the simple fact that Var(3X - 2) = 3^2 Var(X). Now note that Var(X) = 16 (see here: Exponential distribution - Wikipedia, the free encyclopedia)

Question 1124912: Given the function g(x) = 6 - x^2, evaluate [g(x + h) - g(x)]/ h, h ≠ 0.

Question 315026: Translating and reflecting linear functions. Let g(x) be the indicted transformation of f(x).Write the rule for g(x).

2009年9月30日 · Write an equation of a function g(x) in terms of f(x) if the graph of g is obtained when the graph of f is reflected across the x-axis, vertically stretched by a factor of 3, shifted 7 units to the right and 9 units upward. Any help getting me started would be great, thanks!

means this function will take whatever you give it and raise 2 to that power. So when we give it g(x) it will raise 2 to that power: So now we can see what will happen to this for the various definitions of g(x). A. g(x)= cx B. g(x)= c/x C. g(x)= x/c D. g(x)= x-c E. g(x)= log x Now we just need to figure out which exponent is largest When c>1 ...

Question 1084087: For the real-valued functions g(x)=x+4/x+5 and h(x)=4x+7, find the composition g∘h and specify its domain using interval notation.

Question 1207507: (a) The graph of y=f(x) is shown. Translate it to get the graph of y=f(x+4). (b) The graph of y=g(x) is shown. Translate it to get the graph of y=g(x)+3. Answer by ikleyn(52337) (Show Source):