Answer:
1/5
Step-by-step explanation:
formula is y = kx
k is the constant of proportionality
when x is 5 y is 1
when x is 10 y is 2
so 1 = k * 5
so k = 1/5
In mathematics, an isometry is a distance-preserving injective map between metric spaces. A composition of two opposite isometries is a direct <span>isometry.
Hope it helped!!</span>
