Lucas has an 11 ft ladder. to the nearest foot, how far up the wall will the ladder reach when the base of the ladder is 4 ft from the wall?

It would be about 10.24 ft because if we use the A squared +B squared= C squared we can input the known values so it would look something like this... 4 squared+ B squared = 11 squared and then we isolate B to get about 10.24 ft 

Exponential function