Answer:
y = 7 and x = 4
Explanation:
the equation of a horizontal line, parallel to the x- axis is
y = c ( c is the value of the y- coordinates the line goes through )
the line goes through (4, 7 ) with y- coordinate 7 , then
y = 7 ← equation of horizontal line
the equation of a vertical line, parallel to the y- axis is
x = c ( c is the value of the x- coordinates the line goes through )
the line goes through ( 4, 7 ) with x- coordinate 4 , then
x = 4 ← equation of vertical line