Is the function f(x)
= -6x + 5 linear or nonlinear?

This is a linear function.

Step-by-step explanation:

A linear function is a straight line. Once you graph the equation, you get a staright line, therefore, it's linear.

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.