What is the equation in point-slope form of the line passing through (1, 9) and (1, 11)? (5 points)

y-9=0(x-1)

Step-by-step explanation:

first, find the slope with m=y2-y1/x2-x1

11-9=2

1-1=0

2/0 is undefined so i think you have to use 0

sorry if im wrong

i find it difficult when there is no slope

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.