Ldentify the slope and yintercept of the function y = 3x- 6. OA. The slope is 6.
OB. The slope is 3.
OC. The slope is 6.
OD. The slope is 3.
The yintercept is (0, -3).
The yintercept is (0, 6).
The yintercept is (0, 3).
The yintercept is (0, -6).
SUBMIT

QUESTION:

Identify the slope and y-intercept of the function y = 3x - 6

In all choices the correct answer is

Slope:

y-intercept:

EXPLANATION:

The slope-intercept form is where is the slope and is the y-intercept

Find the values of and using the form:

The slope of the line is the value of , and the y-intercept is the value of

Slope:

y-intercept:

hope it's helps

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 ☺