B)
C)
D) 5π
12.
x + 3y = 42
3 x − y = 8
In the system of equations above, how many points of intersection do the equations share
and what is their relationship, if any?
A) Zero, and the lines are parallel.
B) Infinitely many, and the lines are the same line.
C) One, and the lines have no relationship.
D) One, and the lines are perpendicular.
13.
The figure above shows the graph in the xy-plane of the function f. If q, r, s and t are
distinct real numbers, which of the following could be f(x) ?
A) f(x) = (x – q)^2
B) f(x) = (x − r)(x + s)
C) f(x) = (x − r)(x + s)(x + t)
