Fréd and ethel wached tv for several hours one afternoon. they began at 1: 30 p. m and continued waching tv for 3 hours and 45 minutes until their mom came and turner off the tv. at what time did their mom turner off the tv?

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)