In a cross-country run organized by a school, the students who completed the run
within one hour would obtain 2 points for their team. a total of 280 students managed
to obtain the points. the number of boys who obtained the points was 60 more than
the number of girls. how many points did the girls obtain during the cross-country
run?

280 students have a total of 560 points

There 60 more boys(x+60) complete than girls(x)

2*(x+60)+2*x= 560

number of girl =x =110  

girl point =110*2= 220

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