Practice problem
For a real number a≠0a \neq 0a=0 define f(x)=∣x∣f(x) = |x|f(x)=∣x∣ and g(x)=∣x−a∣g(x) = |x-a|g(x)=∣x−a∣. How many times do the graphs of f(x)f(x)f(x) and g(x)g(x)g(x) intersect?
−1-1−1
000
111
222
∞\infty∞
Type a concept, like “slope” or “photosynthesis”.