Linear Functions

Given $f(x)=3x-5$, what is $f(4)$?

Given $g(x)=2x+9$, which statement best describes the initial value?

A taxi charges a $4$ USD starting fee plus $1.75$ USD per mile. Which function models the total cost $C(m)$ for $m$ miles?

Given $h(x)=-4x+12$, what is the rate of change?

Given $p(x)=5x-2$ and $q(x)=5x+6$, how do the two functions compare?

A water bottle has $12$ ounces at $t=0$ and loses $2$ ounces each hour. Which function models the amount of water $W(t)$ after $t$ hours?

Given $k(x)=7x+1$, for what value of $x$ is $k(x)=29$?

A runner's distance from the start is modeled by $d(t)=8+3t$, where $t$ is time in minutes. What does the initial value $8$ represent?