Compare and contrast these four functions using complete sentences. Focus on the slope and y-intercept first, and then on any additional properties of each function.

- anonymous

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- anonymous

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- anonymous

helppppppp

- anonymous

@loser66

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## More answers

- anonymous

@pooja195

- anonymous

what's the slope and y-int of the first function?

- anonymous

(– 2, 2) and (– 1, – 1)

- anonymous

ok, what's the slope?

- anonymous

o i have no idea

- anonymous

|dw:1434409578106:dw|

- anonymous

plug in the points to find the slope

- anonymous

-3/1

- anonymous

|dw:1434409683611:dw|

- anonymous

that's right, the slope is -3

- anonymous

now what is the y-intercept

- anonymous

i dont get it

- anonymous

where does the line cross the vertical axis

- anonymous

-4

- anonymous

correct, that's the y-intercept

- anonymous

so thats for the first funtion

- anonymous

ya, what is the slope and y-int for the second function?

- anonymous

would the slope be 3

- anonymous

ya, and the y-int?

- anonymous

-4

- anonymous

crrect

- anonymous

the third one is a little abstract

- anonymous

we'll make the days of the week x and the number of apples y

- anonymous

monday will be 0 and tuesday will be one

- anonymous

points are (0,4) and (1,1)

- anonymous

so that would be for my slope correct?

- anonymous

and y-int

- anonymous

so the slope is -3 and the y-int would be 4?

- anonymous

that's right

- anonymous

last one?

- anonymous

would i need to the formula i just used for the last one

- anonymous

first find the slope

- anonymous

i got 12/4

- anonymous

the y-intercept takes a little bit of algebra

- anonymous

so it would be 3

- anonymous

correct

- anonymous

so the equation of the line is
y=3x+b
where b is the y-int

- anonymous

plug in one of the points for x and y and solve for b

- anonymous

lets use the point (2,10)

- anonymous

im lost

- anonymous

10=3(2)+b

- anonymous

solve for b

- anonymous

do i multiply 3 and 2 and get 6 then divide?

- anonymous

no dividing

- anonymous

3(2) is 6

- anonymous

10=6+b

- anonymous

what is the last step?

- anonymous

subtract

- anonymous

o its 4

- anonymous

THANK YOU SOOOOOO MUCHHHH

- anonymous

no problem

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