slope upwards

"What we found was that the best description of these data statistically, was that there was an inflection point at that March 16 week. That was...a gradual permanent, which means it was a curved slope upwards. So, it's not an abrupt step. It's not an immediate increase. It's just a gradual increase that tapers," Morrison stated.

Typically, when the outlook is for activity to expand at a healthy clip, the yield curve will slope upwards, implying interest rates on an upward trend.

The land was beginning to slope upwards, ever more steeply; but the Orcs did not halt.

Streets slope upwards from the waterfront, passing stone churches and the Sleepy Hollow Cemetery, where the writer Washington Irving is buried.

This obviously flows from the fact that supply curves slope upwards: more people are prepared to offer whatever it is the higher the price.