SOLUTION: what is the slope of the line passing through (5,5) and (-4,5)

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Question 991940: what is the slope of the line passing through (5,5) and (-4,5)
Answer by MathLover1(20849) About Me  (Show Source):
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Solved by pluggable solver: Find the equation of line going through points
hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (5, 5) and (x2, y2) = (-4, 5).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%285-5%29%2F%28-4-5%29+=+0.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or 0%2A5+%2Bb+=+5. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=5-0%2A5+=+5.

y=(0)x + (5)

Your graph:




compare y=0%2Ax%2B5 to the slope-intercept form y=mx%2Bb
you see that a slope m=0; it is a horizontal line, and the slope of a horizontal line is always zero+