Cada pergunta deste Quiz é cronometrada.
The two functions f and g defined by f(x) = 3x + 3 for x real and g(t) = 3t + 3 for t real and positive are equal?
If functions f and g have domains Df and Dg respectively, then the domain of f / g is given by
The union of Df and Dg
The intersection of Df and Dg
The intersection of Df and Dg without the zeros of function g
None of the above
The graph of f(x) and that of f(x + 2) are the same.
Let the closed interval [a , b] be the domain of function f. The domain of f(x - 3) is given by
the open interval (a , b)
the closed interval [a , b]
the closed interval [a - 3 , b - 3]
the closed interval [a + 3 , b + 3]
Let the interval (a , +infinity) be the range of function f. The range of f(x) - 4 is given by
the interval (a - 4 , +infinity)
the interval (a + 4, +infinity)
the interval (a, +infinity)
The equation y = | x | , with y >= 0, represents y as a function of x.
The equation x = | y | , with x >= 0, represents y as a function of x.
(x+4)^2+(y−6)^2 =48 What is its center?
(4,6)
(-4,-6)
(-4,6)
(4,-6)
(x+9)^2+(y−46)^2 =123 What is its radius?
11.09
6.78
3
12.34
(x−0.5)^2+(y−3.5)^2=16 The center is (0.5, 3.5)
Fill in the blanks with the correct answers. center (0,5) r=4 x^2+(y-5)^2=
Center(2,-3) r= (x-2)^2+(y+3)^2=9
FOCI: The formula in solving a>b is c^2=b^2-a^2
