Question

What is the equation of the line which includes points (1, 1) and (1, 5)?

x = 1

y = 1

y = x + 1

y = -x - 1

Answer 1

i think we can use point slope form

Answer 2

would it be c?

Answer 3

@abayomi12 DO YOU KNOW?

Answer 4

Hint: Notice how the x coordinates of both points are the same

Answer 5

ok..

Answer 6

Your book probably has the equation for point slope form. It looks like this \[(y-y _{1})=m(x-x_{1})\] Use it to find the slope (m). Recall y=mx+b

Answer 7

a

Answer 8

plot the points, that should help you decide which one it is

Answer 9

x=1

Answer 10

you got it

Answer 11

thanks!

Answer 12

yw

Answer 13

yw

Answer 14

(1 , 1) , (1 , 5)
m = (y2 - y1) / (x2 - x1)
m = (5 - 1) / (1 - 1)
m = 4/0
m = undefined

we can see that x = 1 is in the two points, which means that x = 1 i the equation of the line.