Consider the plot created from the residuals of a line of best fit for a set of data.

Does the residual plot show that the line of best fit is
appropriate for the data?

O Yes, the points have no pattern,
O Yes, the points are evenly distributed about the x-
axis
O No, the points are in a linear pattern,
O No, the points are in a curved pattern.

its the 2nd choice the one you wrote  

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

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.