Question

a vertical line goes through the point(-3,10) what is the equation of the horizontal line going through the same point?

Answer 1

Horizontal lines have the form:
\[y=c\]
Where c is the x co-ordinate of any point it passes through.
Can you figure it out now?

Answer 2

can you please solve it

Answer 3

I meant y co-ordinate.
You want a horizontal line which goes through (-3, 10).
Horizontal means that the y value will stay the same wherever you are on the line. You know that at one point the y value is 10, so it will always be this.
Hence the equation is:
\[y=10\]

Answer 4

thank you