Step-by-step explanation:
y varies as x^2
y=75/8
x=5
x^2=5^2=25
y=kx^2
k= constant
75/8=25k
cross multiply
8*25k=75
200k=75
k=75/200=15/40=3/8
therefore k=3/8.
equation bonding x and y =
x=3/8y
x=5. 5=3/8y
3=40y. therefore y=3/40.
when x is 2
2=3/8y
16y=3
y=3/16
