f(x)=x-4f(3)=3-4so f(3)= -1
Answer:
3
Step-by-step explanation:
y-values of sampled wave:
0, 5, 5, -3, -5, -3, 2, 0, 0, -1, -2, 1, 1, -1, -1, -2, 2, 3, -1
My teacher told me to put a dot on very cross or intersection that the line is on.