If the demand for a good or service increases, how will prices effect supply?

if the demand of a good or service is up and supply is down the price will go up but if demand is down and supply is up prices go down

If demand increases (decreases) and supply is unchanged, then it leads to a higher (lower) equilibrium price and quantity. If supply increases (decreases) and demand is unchanged, then it leads to a lower (higher) equilibrium price and higher (lower) quantity.