The graphs of equation that has a horizontal asymptote as y=-3 would be equation C. That is option C.
What is horizontal asymptote?
A graph's horizontal asymptote is a horizontal line with the equation y = b where the graph moves closer to the line as the inputs go closer to ∞ or -∞.
The formula for a graph asymptote = y = (cx + d) / (ax + b)
thus, x = - b / a
y = c / a
So, discuss with the options, we get:
for option A:
x = -1, y = 1
for option B:
x = 2/3, y = -1/3
for option C:
x = -2, y = -3
for option D:
x =2/3 , y = - 1