The number of hours spent watching TV the weekend before a math test and the test results for thirteen students in Mr. Holland's class are plotted below and a line of best fit is drawn. If the equation of the line is y = -5.9x + 91.9, select all the statements that are true.
A.
The slope of the line indicates that the test score and time spent watching TV have a negative relationship.
B.
The linear model predicts an approximate 6-point drop in test score for one hour spent watching TV.
C.
The y-intercept of the line indicates that a student who spends no time watching TV will get the highest test score.
D.
The linear model predicts an approximate test score of 92 if no time is spent watching TV.
E.
According to the model, when watching 6 hours of television, your projected test score is 70.

answer: y=4000x+14000

step-by-step explanation:

i think it would be 42cm

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺