It follows that
Therefore,
So
40 . B
In every function, there can be only one value in the range (only one y value) for each value
in the domain (each x value). In the graph shown in (B), there are two y values for each value
of x (that is greater than −3).
41 . C
π radians = 180 degrees
To find the measure of 4 radians, you can solve the equation by cross multiplying:
πx = 720
42 . A
To find the value of n, you can get the median of the numbers in terms of n. The median is
the middle value in a set of numbers. Fill the gap in the sequence of numbers:
n + 3, n + 7, n + 11, n + 15, n + 19, n + 23, n + 27, n + 31, n + 35
There are nine numbers in the set, so the middle number is the fifth, which is n + 19.