Which facts are true for the graph of the function below? check all that apply.
f(x) = 3 * 4^x
a. the range of f(x) is y > 4.
b. it is decreasing.
c. it is increasing.
d. the y-intercept is (0, 4).
e. the y-intercept is (0, 3).
f. the domain of f(x) is all real numbers.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5