anonymous
  • anonymous
What is the slope of the line passing through the points (–1, 3) and (4, –7)? a. 2 b. 3/4 c. - 4/3 d. -2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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jim_thompson5910
  • jim_thompson5910
slope formula \[\Large m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]
anonymous
  • anonymous
(-1, 3) and (4, 7) x1, y1 x2, y2 M= y2 - y1 ----------- x2 - x1 = 7-(3) - ------- 4 - (1) = 4/5
anonymous
  • anonymous
i am confused here

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anonymous
  • anonymous
at this part i mean
jim_thompson5910
  • jim_thompson5910
In english: Step 1) subtract the y coordinates Step 2) subtract the x coordinates (same order as you did y) step 3) divide the y difference (from step 1) over the x difference (in step 2)
jim_thompson5910
  • jim_thompson5910
you should have 4 - (-1) in the bottom
anonymous
  • anonymous
yeah i do i forgot the negative here one sec
anonymous
  • anonymous
and 4 - (-1) = 5
jim_thompson5910
  • jim_thompson5910
ok where are you stuck?
anonymous
  • anonymous
which is 4/5
anonymous
  • anonymous
the fact that i can not simplifiy the 4/5 any lower and it is not n answer choice
jim_thompson5910
  • jim_thompson5910
what are your choices?
jim_thompson5910
  • jim_thompson5910
oh wait
anonymous
  • anonymous
the ones up top
jim_thompson5910
  • jim_thompson5910
you did 7-3 in the top when it should be -7-3
anonymous
  • anonymous
OMG
jim_thompson5910
  • jim_thompson5910
when you wrote `(-1, 3) and (4, 7)` you wrote the second point incorrectly so that may be why
anonymous
  • anonymous
let me re work
anonymous
  • anonymous
-7 - (3) ---------- 4 - (-1) = -10 ------ 5
jim_thompson5910
  • jim_thompson5910
looks much better
anonymous
  • anonymous
which is -2
jim_thompson5910
  • jim_thompson5910
correct
anonymous
  • anonymous
haha thank you for chatching that here is a medal
jim_thompson5910
  • jim_thompson5910
you're welcome

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