question 2 (10 points)\nselect correct equations.\n$y = y_f - y_0$\n$delta t = t_f - t_0$\n$t = t_0…

Explanation:

Step1: Analyze the first equation

The equation $y = y_f - y_0$ represents a change in the $y -$ variable. It is a valid way to express the change in a quantity $y$ from an initial value $y_0$ to a final value $y_f$.

Step2: Analyze the second equation

The equation $\Delta t=t_f - t_0$ is a standard way to represent the change in time. Here, $\Delta t$ is the time - interval, $t_f$ is the final time and $t_0$ is the initial time.

Step3: Analyze the third equation

The equation $t = t_0 - t_f$ is incorrect. Usually, time is measured as the final time minus the initial time for a time - interval calculation, not the other way around.

Step4: Analyze the fourth equation

The equation $\Delta z=z_0 - z_f$ is incorrect. The standard form for the change in a variable $z$ is $\Delta z = z_f - z_0$, where $\Delta z$ represents the change in the $z$ - variable from an initial value $z_0$ to a final value $z_f$.

Answer:

$y = y_f - y_0$, $\Delta t=t_f - t_0$