Start with the original graph
Start with the original graph
The graph y=f(x)y=f(x)y=f(x) is the original function. If the graph contains the point (3,6)(3,6)(3,6), then when the input is 3 the output is 6, so f(3)=6f(3)=6f(3)=6.
Start with the original graph
Start with the original graph
The graph y=f(x)y=f(x)y=f(x) is the original function. If the graph contains the point (3,6)(3,6)(3,6), then when the input is 3 the output is 6, so f(3)=6f(3)=6f(3)=6.