9. Does the equation y= 2x represent
a linear or a nonlinear function?

linear

Step-by-step explanation:

So, the slope is constant, meaning the graph is a straight line.

So, it is linear.

Liner

Step-by-step explanation: All liner equations are written in  y = mx + b. or (y - y1) = m(x - x1)  and your equation is written in y=mx+b but your equation would start at the orgin on a graph since it does not have a b value

.

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.