What is the inverse of the function g() = 2/5 x + 3?

5/2(x-3)

Step-by-step explanation:

g(x) = 2/5 x + 3

y = 2/5x +3

Exchange x and y

x = 2/5y +3

Solve for y

Subtract 3 from each side

x-3 = 2/5y +3-3

x -3 = 2/5y

Multiply each side by 5/2

5/2(x-3) = 5/2(2/5)y

5/2(x-3) = y

The inverse is 5/2(x-3)

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.