Question
suppose y is directly proportional to x. if y=6 when x=4, find the constant of proportionality and write the formula for y as function of x. Use your formula to find x when y=8.
Answers
Steve
y = kx
6 = 4k, so k = 3/2
y = 3/2 x
6 = 4k, so k = 3/2
y = 3/2 x