A student found the slope of a line that passes through the points (-3, -10) and (5, -7) to be 3/8 . What mistake did he make?

A. He added a negative sign.
B. He used the negative reciprocal of the slope.
C. He used the reciprocal of the slope.
D. He did not make a mistake. That is the correct slope.

Question

A student found the slope of a line that passes through the points (-3, -10) and (5, -7) to be 3/8 . What mistake did he make?

 		A.	He added a negative sign.
 		B.	He used the negative reciprocal of the slope.
 		C.	He used the reciprocal of the slope.
 		D.	He did not make a mistake. That is the correct slope.

anonymous · Answer

to find the answer do i have to do m=y1 - y2/x1-x2?

solomonzelman · Answer

yes:   $\large\color{black}{{\rm slope} =\frac{\LARGE  y_1-y_2}{\LARGE x_1-x_2}  }$

solomonzelman · Answer

I can't tell what the student did, but I can tell what to do though....

anonymous · Answer

ok.

solomonzelman · Answer

yes, cuz I am not shown any of the student's work

anonymous · Answer

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