Which of the following equations results in no solutions?
a 3(u + 5) = 2u + 15
b 3(u + 5) = 2u + 15 + u
c 3(u + 5) = 2u - 4 + u
d 3(u + 5) = 2u - 4
need

people went from manufacturing one object at a time by hand to manufacturing many objects in factories

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