Hello there!
A would be the correct answer since 10 divided by 5 equals 2 and so it would be 2x.
B is wrong since it has a constant of proportionality equal to 1.
C is wrong since it has a constant of proportionality equal to 1/2.
D is wrong since it has a constant of proportionality equal to 11.
Answer:
A
Step-by-step explanation:
The equation of proportional quantities is
y = kx ← k is the constant of proportionality
A
y = [tex]\frac{10}{5}[/tex] x = 2x ← with k = 2
B
y = [tex]\frac{2}{2}[/tex] x = x ← with k = 1
C
y = [tex]\frac{2}{4}[/tex] x = [tex]\frac{1}{2}[/tex] x ← with k = [tex]\frac{1}{2}[/tex]
D
y = [tex]\frac{22}{2}[/tex] x = 11x ← with k = 11
Thus A is the required equation
