Question

Find the slope of line passing through the points (5, 9) and (5, -2)
a)0
b)-11
c)undefined
d)11

Answer 1

okay so you graph it . put the points in the graph and you can calculate the slope. Or just do (xone - xtwo)/(yone-ytwo). which is 0

Answer 2

i lied not zero

Answer 3

or use the slope formula
The slope of the line through points (x1,y1) and (x2,y2) is given by :
\(\huge m=\frac{y_1-y_2}{x_1-x_2}\)
now,just put the values and find m.

Answer 4

its undefined

Answer 5

cuz it is a vertical line

Answer 6

because x2-x1 = 0 the formula above (hartnn) is not defined (cannot divide by zer0)
so oyu have your answer.
The 2 x values are the same - the line is vertical - it has no 'slope'