The Other Frame Is Moving in The $+x$ Direction With $x$ -Velocity $\beta=0.25$

Short Answer

The Other Frame is moving in the $+x$ direction with $x$ -velocity $\beta=0.25$ with respect to the Home Frame. The two-observer space time diagram in figure R5.9 shows the diagram $t$ and $x$ axes of the Home Frame and the diagram $t^{\prime}$ axis of the Other Frame. Which of the choices in that figure would best correspond to the diagram $x^{\prime}$ axis if the Newtonian concept of time were true?