SOLUTION: Does this make sense for answers? I'm trying but I just want to double check... For each of the following, find the slope, if it exists, of the line determined by the given pair

Algebra ->  Points-lines-and-rays -> SOLUTION: Does this make sense for answers? I'm trying but I just want to double check... For each of the following, find the slope, if it exists, of the line determined by the given pair       Log On


   

Question 360720: Does this make sense for answers? I'm trying but I just want to double check...
For each of the following, find the slope, if it exists, of
the line determined by the given pair of points:

a. (4,3) and (-5,0)
0-3 -3 0
M= -5-4 = -1= 3
b. (√5,2) and (1,2)
2-2 0
M= 1-5= -4
c. (a,a) and (b,b)
b-a
M=b-a= undetermined
Found 2 solutions by jim_thompson5910, ewatrrr:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
a)

m=%280-3%29%2F%28-5-4%29=%28-3%29%2F%28-9%29=-1%2F3

So the slope is -1%2F3

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b)
m=%282-2%29%2F%281-sqrt%285%29%29=%280%29%2F%281-sqrt%285%29%29=0

So the slope is 0


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c)
m=%28b-a%29%2F%28b-a%29=cross%28b-a%29%2Fcross%28b-a%29=1

So the slope is 1

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

m+=%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29

a. Pt%5B1%5D(4,3) and Pt%5B2%5D(-5,0)

m = (0-3)/(-5-4) = -3/-9 = 1/3



b. Pt%5B1%5D(5^.5,2) and Pt%5B2%5D(1,2)

m = (2-5^.5)/(1-2)



c.Pt%5B1%5D(a,a) and Pt%5B2%5D(b,b)

m = (b-a)/(b-a) = 1