Which of the following is an even function?
f(x) = |x|
f(x) = x3 – 1
f(x) = –3x

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis