The incorrect expression for slope is Option(B) and Option(C) .
What is slope of a straight line ?
The slope of a straight line gives the measure of its steepness or inclination and direction. The slope of a straight line between two points says (x1,y1) and (x2,y2) can be easily determined by finding the difference between the coordinates of the points. The slope is usually represented by the letter 'm'.
Which statements are incorrect about expression of slope?
The slope for a straight line is represent as -
m = run/rise = (y2 - y1)/(x2 - x1) = Δy/Δx .
where x1,x2 are x coordinates of the straight line and y2,y1 are y-coordinates of the straight line.
Thus Option(B) is not the correct expression as (x2 - x1)/(y2 - y1) is not correct.
Also in Option(C), it is said that the change in dependent variable to change in independent variable , where we do not know whether x and y are dependent or independent variable to measure the slope.
Thus Option(C) is also incorrect.
Therefore, the incorrect expression for slope is Option(B) and Option(C) .
To learn more about slope of a straight line, refer -
https://brainly.com/question/14482450
#SPJ2
