Which of the following sets of points are reflections of each other across the x-axis?
a. (4, -7) → (4, 7)
b. (4, -7) → (-4, -7)
c. (4, -7) → (-4, 7)
d. (4, -7) → (-7, 4)
point a is located at (3, 4) and is translated left 5 and up 3. what is the new location of point a?
a. (8, 7)
b. (8, 1)
c. (-2, 1)
d. (-2, 7)
which of the following sets of points are reflections of each other across the y-axis?
a. (4, -7) → (4, 7)
b. (4, -7) → (-4, -7)
c. (4, -7) → (-4, 7)
d. (4, -7) → (-7, 4)

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."