## University Calculus: Early Transcendentals (3rd Edition)

$\mathrm{Domain:}\ \ (-\infty,\infty)$
Given function: $\quad f(x)=5-2x$ The function will be defined for any value of $\ x\$. So the domain would be $\ (-\infty,\infty).$ The given function is linear and represents a line. We need at least two points to graph it. Just pick 2 values of $\ x\$ and find their corresponding $\ y\$ values. Then draw the line through those two points. When $\ x=0,\ y=5-0=5$. So our first point is $\ (0,5)$ When $\ x=2,\ y=5-4=1$. So our first point is $\ (2,1)$ So, here is our graph.