Question

[Nguyễn Thị Hồng Lê]

• The function g is defined on the real numbers by g(x) = 2x + x(x+3)g(x)=2x+x(x+3).  What is the value of g(2)g(2)?
   Answer:

   

• Câu 2

  The function p is defined on the real numbers by p(q) =\dfrac{q^2-q}{(q+1)q}p(q)=(q+1)qq2−q​. What is the value of 10\times p(-11)10×p(−11)?
  Answer:

   

• Câu 3

  The function p is defined on the real numbers by p(q) = 3-\left| {3q-7} \right|p(q)=3−∣3q−7∣. What is the value of p(-2)p(−2)?
   Answer:

   

• Câu 4

  The function f is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-3)=6f(−3)=6?
  Answer:

   

• Câu 5

  Given a negative number k and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)=136​x.
  Compare: f(k)f(-k)

   

  f(-k)f(−k)