If x is inversely proportional to y and x = 9 when y = 4, find the law containing x and y
A
x = \(\frac{16}{y}\)
B
x = \(\frac{36}{y}\)
C
x = \(\frac{y}{36}\)
D
x = \(\frac{13}{y}\)
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
x = \(\frac{K}{y}\)
9 = \(\frac{K}{4}\)
K = 9 x 4 = 36
Therefore, the law connecting x and y is: x = \(\frac{36}{y}\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #70321)