Problema Solution
find an equation of variation in which y varies indirectly as x and the following are true. then find the value of y when x = 100.
y=6 when x=3
y=11 when x=2
Answer provided by our tutors
We assume the equation is y=ax+b
y=6 when x=3, so 6=3a+b
y=11 when x=2, so 11=2a+b
So a = -5, b = 21
So the equation is y=-5x+21
when x=100, y = -479