what is the slope of the line that passes through the given points (6,-1) and (-3,-1)
a. undefined
b. 0
c. -2/3
d. -3/2

Question

what is the slope of the line that passes through the given points (6,-1) and (-3,-1)
a. undefined
b. 0
c. -2/3
d. -3/2

tkhunny · Answer

Look at the y-coordinates and answer the question without doing ANY calculations.

blurbendy · Answer

hint:

slope = (y2 - y1) / (x2 - x1)

anonymous · Answer

@tkhunny can you help me

anonymous · Answer

@blurbendy can you help me

blurbendy · Answer

yes, what's your question

anonymous · Answer

can you help me with this question

blurbendy · Answer

to find the slope of a line that passes through two points, use the formula

slope = (y2 - y1) / (x2 - x1)

y2 = -2
y1 = -1
x2 = -3
x1 = 6

tkhunny · Answer

Did you look at the y-coordinates?  What is special about them?  Can you draw any conclusion?

isaiah.feynman · Answer

@cutegirl the slope is OBVIOUSLY 0. What does that tell you about the line itself?

anonymous · Answer

i was not sure lol

tkhunny · Answer

Since two points determine a line, the x-coordinate is not significant.  The y-coordinate will always be -1.  This is a horizontal line and the slope is zero.  Contract this with a vertical line that has NO slope.  This is very different from zero slope.