What is the domain of the function below? f(x) = log(x - 4) + 4a: (-infinate, 4)b: [4, infinate)c: (-4, infinate)d: (4, infinate)

The logarithm is defined only when its argument is (strictly) positive. So, you must impose

Just add 4 to both sides to get

So, the domain is composed by all numbers greater than 4 (excluded), which is represented by the interval

l.jnl.j/n.m,lm,

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2