The lengths of the legs of a 45° -45° -90° triangle can be described by the expressions 3x - 10 and x + 2. What is the length of the legs of the triangle?

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0