If y is directly proportional to x^2 and y=1/8 when x=1/2, what is the positive value of x when y=9/2?
a) 3/4
b) 3/2
c) 9/4
d) 3
e) 9
what i did:
y: 1/8
x^2: 1/4
1/8 * 36 = 9/2
therefore
1/4 * 36 = 9
but the answer is 3, not 9...
If y is directly proportional to x^2 and y=1/8 when x=1/2, what is the positive value of x when y=9/2?
a) 3/4
b) 3/2
c) 9/4
d) 3
e) 9
what i did:
y: 1/8
x^2: 1/4
1/8 * 36 = 9/2
therefore
1/4 * 36 = 9
but the answer is 3, not 9...