Question 659902
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
What would the equation be for
(a)the horizontal line: {{{y = 7}}}
(b) the vertical line:  {{{x = 4}}}
that contain the given point, (x,y) ordered pair A (4,7)

{{{drawing(300,300,   -6, 6, -6, 10,  blue(line(4,10,4,-6))  , grid(1),
circle(4, 7,0.3),
graph( 300, 300, -6, 6, -6, 10,0,7))}}}