For the function defined by...HELP

posted by .

For the function defined by f(x)=3x^2+5x+2, find the following values.
(a) f(-4)=
(b) f(-x)=
(c) -f(x)=
(d) f(x+h)=

  • For the function defined by...HELP -

    just plug and chug:
    f(-4) = 3(16)+5(-4)+2 = 30
    f(-x) = 3(-x)^2+5(-x)+2 = 3x^2-5x+2
    -f(x) = -(3x^2+5x+2) = -3x^2-5x-2

    f(x+h) = 3(x+h)^2+5(x+h)+2
    = 3x^2+6hx+3h^2 + 5x+5h + 2
    = 3x^2 + (6h+5)x + (3h^2+5h+2)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. domain

    Find the domains of f and f' 1, f(x) = xe^x 2. f(x) = x^(3/5) 3. f(x) = x/(x-2) TIA 1) R 2) It's the interfal from zero to infinity for f but for f' it is this inteval with zero excluded, because unlike f, f' is singular at zero. 3) …
  2. Algebra

    Can you please help me with the following problems?
  3. math grade 11

    A quadratic function is defined by f(x)= 3x^2+4x-2. A linear function is defined by g(x)= mx-5. what values(s) of the slope of the line would make it a tangent to the parabola.
  4. math grade 11

    A quadratic function is defined by f(x)= 3x^2+4x-2. A linear function is defined by g(x)= mx-5. what values(s) of the slope of the line would make it a tangent to the parabola
  5. Calculus

    A cubic polynomial function f is defined by f(x) = 4x^3 + ax^2 + bx + k?
  6. Calculus

    A cubic polynomial function f is defined by f(x) = 4x^3 + ax^2 + bx + k?
  7. Calculus - Functions?

    #1. A cubic polynomial function f is defined by f(x) = 4x^3 +ax^2 + bx + k where a, b and k are constants. The function f has a local minimum at x = -1, and the graph of f has a point of inflection at x= -2 a.) Find the values of a …
  8. pre-calculus

    for the function f defined by: (x)=3x^2+3x+2;find the following values. a. f(-1)= b. f(-x)= c. -f(x)= d. f(x+h)=
  9. Let f be the function be defined by f(x)=5^((2x^2)

    Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2) find the range of f without using a calculator
  10. Maths

    Correct each of the following incorrect statements: 1)The inverse of the function defined by y= 5/x +1 is defined by y= 5/x - 1. 2)The graph of a function and its inverse are always reflection in the line =0.

More Similar Questions