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Jarred Krajcik
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∙ 14y agoF(x) = -5x
F(-3) = -5 (-3) = +15
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if f(x)=4x-8 and g(x)=5x+6 find (f+g)(x) if?
(f+g)=4x+5x-2
If 2 f of x plus f of 4 minus x equals x squared what is f of x?
find f'(x) and f '(c)f(x) = (x^3-3x)(2x^2+3x+5
Evaluate the function below for x = 3 F(x) = x ^ 3 + 5x ^ 2 + 1 Answer D. 73?
Answer is D.73
What is the average rate of change from x equals 2 to x equals 3 for the function f of x equals 3 ln x?
It is 1.2164
If f of x equals 3x - 10 then what is f of 2a?
if f(x) = 3x - 10, then whatever is put (substituted) for x in the "f(x)" bit is substituted for x in the "3x - 10" bit. Thus f(2a) = 3(2a) - 10 = 6a - 10.
What is f of x equals x to the 4th power minus 5x if f equals 3?
The idea is to replace every "x" by "3", and then do the calculations.
What is the value of f of x plus 7 if f of x equals -5x-9?
Let, f (x) = - 5x - 9 Therefore, f(x) + 7 = - 5x - 9 + 7 f(x) + 7 = - 5x - 2
What is gf 4 if f x equals 5x and g x equals 3x - 7?
f(x)=5x, g(x)=3x-7 gf(x)= = g(f(x)) = g(5x) = 3*(5x) - 7 = 15x-7 So gf(4) = 15*4-7=53
What is the inverse of f of x equals 5x plus 4?
No, f(x) is not the inverse of f(x).
How do you find the rate of change for 5x plus 3y equals -2?
Rearrange for y, let f(x) = y, and find the derivative of f(x) with respect to x: 5x + 3y = -2 y = -(5x+2)/3 = f(x) df/dx = -5/3
Rewrite fx equals 5x plus 2?
f(x)=5x+2
How do you solve f of x equals x squared plus 5x plus 1?
f(x) = x2 + 5x + 1 The roots of this equation are x = -0.2087 and x = -4.7913 (approx).
How do you complete the inverse of fx?
Follow this example. f(x) = (x+3)/5 To find its inverse, write y=f(x) y= (x+3)/5 Interchange x and y x = (y+3)/5 solve for y in terms of x 5x=y+3 y=5x-3 The inverse of f(x) is f^-1(x) = 5x-3
Let f x equals x2 plus 5x plus 3 Find f 2?
If I understand this right... f(x) = x2 + 5x + 2 f(x) is a function, in this case a function of x. Using this function, you can say... f(g) = g2 + 5g + 2 f(pi) = pi2 + 5pi + 2 All we're doing is substituting whatever's in the brackets on the other side. Thus... f(2) = 22 + 5*2 + 2
What is the answer to d equals 6 and f equals 3?
You've given the answer yourself. d=6 and f=3.
F varies jointly as g h and j One set of values is f equals 18 g equals 4 h equals 3 and j equals 5 Find f when g equals 5 h equals 12 and j equals 3?
f = 54
F(x)=x^2-5x+4?
F(x)=x^2-5x+4
