Classical Competitive Inhibition

In classical competitive inhibition, either the substrate or the inhibitor can bind to the enzyme, but not both
The effect of a competetive inhibitor is to reduce the effective concentration of the substrate, so that more will be required to produce the same amount of ES complex. This effect is shown in the LB plot by a smaller inverse K_m value, which means that the apparent K_m value is increased. However, once ES is formed, the catalytic rate is the same, so V_max is not affected