anonymous
  • anonymous
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.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
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anonymous
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anonymous
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helppppppp
anonymous
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@loser66

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anonymous
  • anonymous
@pooja195
anonymous
  • anonymous
what's the slope and y-int of the first function?
anonymous
  • anonymous
(– 2, 2) and (– 1, – 1)
anonymous
  • anonymous
ok, what's the slope?
anonymous
  • anonymous
o i have no idea
anonymous
  • anonymous
|dw:1434409578106:dw|
anonymous
  • anonymous
plug in the points to find the slope
anonymous
  • anonymous
-3/1
anonymous
  • anonymous
|dw:1434409683611:dw|
anonymous
  • anonymous
that's right, the slope is -3
anonymous
  • anonymous
now what is the y-intercept
anonymous
  • anonymous
i dont get it
anonymous
  • anonymous
where does the line cross the vertical axis
anonymous
  • anonymous
-4
anonymous
  • anonymous
correct, that's the y-intercept
anonymous
  • anonymous
so thats for the first funtion
anonymous
  • anonymous
ya, what is the slope and y-int for the second function?
anonymous
  • anonymous
would the slope be 3
anonymous
  • anonymous
ya, and the y-int?
anonymous
  • anonymous
-4
anonymous
  • anonymous
crrect
anonymous
  • anonymous
the third one is a little abstract
anonymous
  • anonymous
we'll make the days of the week x and the number of apples y
anonymous
  • anonymous
monday will be 0 and tuesday will be one
anonymous
  • anonymous
points are (0,4) and (1,1)
anonymous
  • anonymous
so that would be for my slope correct?
anonymous
  • anonymous
and y-int
anonymous
  • anonymous
so the slope is -3 and the y-int would be 4?
anonymous
  • anonymous
that's right
anonymous
  • anonymous
last one?
anonymous
  • anonymous
would i need to the formula i just used for the last one
anonymous
  • anonymous
first find the slope
anonymous
  • anonymous
i got 12/4
anonymous
  • anonymous
the y-intercept takes a little bit of algebra
anonymous
  • anonymous
so it would be 3
anonymous
  • anonymous
correct
anonymous
  • anonymous
so the equation of the line is y=3x+b where b is the y-int
anonymous
  • anonymous
plug in one of the points for x and y and solve for b
anonymous
  • anonymous
lets use the point (2,10)
anonymous
  • anonymous
im lost
anonymous
  • anonymous
10=3(2)+b
anonymous
  • anonymous
solve for b
anonymous
  • anonymous
do i multiply 3 and 2 and get 6 then divide?
anonymous
  • anonymous
no dividing
anonymous
  • anonymous
3(2) is 6
anonymous
  • anonymous
10=6+b
anonymous
  • anonymous
what is the last step?
anonymous
  • anonymous
subtract
anonymous
  • anonymous
o its 4
anonymous
  • anonymous
THANK YOU SOOOOOO MUCHHHH
anonymous
  • anonymous
no problem

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