F=132(17.9/100)
f=2362.8/100
f=23.628
f≈23.6 pounds (to nearest tenth of a pound)
The answer would be A because (2,100) crosses the lines on the graph.
If y varies directly with x, means that they can be modeled by a linear equation, lets choose a line with 0 y intercept, that is:
y = mx + b
y = mx
where m is the slope of the line, now we plug in the data we have:
y = mx
20/3 = m(30)
solving for m:
m = (20/3)(1/30)
m = 20/90
m = 2/9
so the line equation, or function modeling the y and x relationship is:
y = (2/9)x
Since a yard is 3 feet, then 3 times 3 is 9 and that is less than 21.
