Question

the expression 35+45x represents a trains distance in miles from a terminal after x hours of travel how far was the train from the terminal at the beginning of the journey1. 35mi2. 45mi3. 10mi4. 80mi

Answer 1

The expression is that of distance

The expression is

$35+45x$

x is the time in hours

We want the distance of the train from the terminal at the beginning of the journey.

This means at time = 0

We will plug in x = 0 and find the distance at the beginning.

Thus,

$\begin{gathered} 35+45(0)_{} \\ 35+0 \\ =35 \end{gathered}$

The train's distance was 35 miles from the terminal at the beginning of the journey

The correct answer is (1.)