A student finds the slope of the line between (8, 17) and (1, 4). She writes[tex]17-4/1-8 What mistake did she make? A. She used y-values where she should have used x values. B. She mixed up the x- and y values. C. She did not keep the order of the points the same in the numerator and the denominator. D. She should have added the values, not subtracted them.

C

Step-by-step explanation:

Calculate the slope m using the slope formula

m =

with (x₁, y₁ ) = (1, 4) and (x₂, y₂ ) = (8, 17)

m = =

Instead of 8 - 1 on the denominator she had 1 - 8

She did not keep the order of the points the same in the numerator and the denominator.

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.