Question

a student found the slope of a line that passes through the points (1,14) and (3,4) to be 5. what mistake did she make?

Answer 1

$x_{1}=1$
$x_{2}= 3$
$y_{1} =14$
$y_{2}=4$
$Slope= \frac{rise}{run} = \frac{ y_{2} - y_{1} }{ x_{2} - x_{1} } = \frac{4-14}{3-1} = \frac{-10}{2} =-5$


answer: The student flipped the y values