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Question 188681: A straight line passes through the points (5,3) and (7,1)
a. find its slop
b. find equation of this line using point-slop from of the line
c. find x-intercpt and y-intercept of the line.
d. find the equation of a line by slop-intercept from of the line. verify
whether it is sme as one obtained in part (b)
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! A straight line passes through the points (5,3) and (7,1)
a. find its slop
It's slope.
Slope, m, = diffy/diffx
m = (1-3)/(7-5)
m = -1
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b. find equation of this line using point-slop from of the line
y-y1 = m*(x-x1) (x1,y1) is either point
y-3 = -1*(x-5) = -x+5
y = -x + 8 slope-intercept form
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c. find x-intercpt and y-intercept of the line.
To find the x-intercept set y = 0
0 = -x + 8
x = 8 --> (8,0)
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y-intercept = (0,8) from slope intercept eqn above
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d. find the equation of a line by slop-intercept from of the line. verify
whether it is sme as one obtained in part (b)
I don't know what that means.
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