If f(x) = 2x + 1, and
g(x) = x - 3, then
g(f(x)) = [?x]+ [?]

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

Graph the line with the given slope m and y-intercept b. m=-3,b=1

What is the area of the shaded sector?