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the table below shows how much joe earns, y, after working x hours.
joe’s earnings
hours worked money earned
4 $30
10 $75
12 $90
22 $165
the relationship between money earned and hours worked is linear. joe computes the slope between (4, 30) and (12, 90), then computes the slope between (4, 30) and (10, 75). how do the two slopes compare?
a the slope between (4, 30) and (12, 90) is greater because the ordered pairs are farther apart on the x-axis.
b the slope between (4, 30) and (12, 90) is greater because the ordered pairs are farther apart on the y-axis.
c the slope between (4, 30) and (12, 90) and between (4, 30) and (10, 75) is the same.
d the slope between (4, 30) and (12, 90) is less because 4 is a factor of 12 and 30 is a factor of 90.

C

Step-by-step explanation:

slope between (4, 30) and (12, 90) is

= (90-30)/(12-4)

= 60/8

= 7.5

slope between (4, 30) and (10, 75) is

= (75-30)/(10-4)

= 45/6

= 7.5

So the answer is C. Both the slopes are of equal magnitude.

C The slope between (4, 30) and (12, 90) and between (4, 30) and (10, 75) is the same.

Step-by-step explanation:

You have to remember that in a linear function the slope will always be the same in the different points of the line, so in this case it doesn´t matter if you calculate the slope with a set of points or another set of points the slope will always be the same.

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.

78.59 is the mean

step-by-step explanation: