Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using interval notation.) f(x)=7x+5

Question

Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using interval notation. If an answer cannot be expressed as an interval, enter EMPTY or ∅.)

f(x) = 7x + 5

Answer 1

This is a linear equation and the slope is positive so the function is increasing over (-∞, ∞). There is no interval where the function is decreasing.