Question

Please help! What is the slope of the line that crosses through the points (1,5) and (1,0)

Answer 1

Two generic points that define a straight line are (x1, y1) and (x2, y2)


In this case, (x1, y1) = (1, 5), which means x1=1 and y1=5


and (x2, y2) = (1, 0), which means x2=1 and y2=0


So x1=1, y1=5, x2=1, and y2=0.


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Now use the slope formula



m = (y2-y1)/(x2-x1)



m = (0-5)/(1-1)



m = -5/0


Since you cannot divide by zero, the slope is undefined.

Answer 2

Thanks!

Answer 3

A quick shortcut is this: if the x coordinates are the same, then you have a vertical line with an undefined slope.

Answer 4

yw

Answer 5

cool thanks again

Answer 6

sure thing