anonymous
  • anonymous
Line QR goes through points Q(0, 1) and R(2, 7). Which equation represents line QR? a. y – 1 = 6x b. y – 1 = 3x c. y – 7 = 2x – 6 d. y – 7 = x – 2
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
anonymous
  • anonymous
ok do you know your Point-Slope formula??
anonymous
  • anonymous

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anonymous
  • anonymous
ok what is you x1 and y1?
anonymous
  • anonymous
and what is your x2 and y2?
anonymous
  • anonymous
x1 is 0 y1 is 1 x2 is 2 y2 is 7 @Musicdude
anonymous
  • anonymous
ok cool now just plug that into your formula and what do you get??
anonymous
  • anonymous
anonymous
  • anonymous
not quite
anonymous
  • anonymous
anonymous
  • anonymous
ehh
anonymous
  • anonymous
nope
anonymous
  • anonymous
ok lets think about it another way
anonymous
  • anonymous
okay b or a? @Musicdude
anonymous
  • anonymous
lol yes
anonymous
  • anonymous
but you have to try and get the answer
anonymous
  • anonymous
anonymous
  • anonymous
so you know y=mx+b?
anonymous
  • anonymous
anonymous
  • anonymous
ok so b is when x is 0 does that sound familiar
anonymous
  • anonymous
anonymous
  • anonymous
alright in this what is your b?
anonymous
  • anonymous
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anonymous
  • anonymous
anonymous
  • anonymous
no x equals 0 so your b is 1
anonymous
  • anonymous
b is Y-intercept
anonymous
  • anonymous
so that means the answer is a @Musicdude
anonymous
  • anonymous
no
anonymous
  • anonymous
then its b @Musicdude
anonymous
  • anonymous
i meant b in the equation y=mx+b not the answer choice
anonymous
  • anonymous
yea it is but you get why?
anonymous
  • anonymous
yeah i get it i got a little confused but i think i got it @Musicdude
anonymous
  • anonymous
ok cool goodnight :)

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