At midnight the temperature was -8 degree F. At noon the Temperature was 23 degrees F. Which expression represents the increase in temperature?

23- -8

This equals to 31. 31 degrees was the increase

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,