And so if enzymes increase the rate of the reaction and they cannot increase the a value or b, that means they have to increase the k value, the rate constant. So if we look at the radius equation, we see that if we decrease the value of EA. So remember enzymes, they stabilize the energy of the transition state, decreasing the energy of the transition state and that decreases the free energy of activation. And so when enzymes decrease the activation energy, EA, they essentially decrease this entire exponent. And since the exponent is negative, what that means is this entire quantity will increase. And so by decreasing the activation energy our enzyme increases the rate constant and that's precisely what increases the rate of that reaction.