Question

equation for horizontal line passing through (-9,2)

Answer 1

horizontal is the x i mean :/ out of (-9,2) what is the x

Answer 2

doesnt say what it x, i got y=2x for the answer

Answer 3

that line is not horizontal :( we need a horizontal line
think of it like this :
when you draw a grid when you draw your x and y axis you are drawing 1 horizontal line and one vertical line where
x axis = horizontal line
y axis = vertical line
so write this as a equation all you have to do is set x or y equal to something to get your vertical or horizontal line so in our case we have (-9,2) and we are looking for a horizontal
x = -9
y = 2
remember our x is the horizontal so we need to set

x = -9 and that will be our answer

Answer 4

okay so if thats our answer, how will i write it in slope intercept form

Answer 5

x = -9

Answer 6

thats how you write it, because no matter how many y's you plug in your x will never change which gives us a slope of 0 but also gives us a horizontal line

Answer 7

thank you.

Answer 8

no problem :)