Answer:
The parametric equations are describing the line "y = 2x -1" letter D.
Step-by-step explanation:
In order to know which line it describes we need to replace the value for t from the first equation on the second one. To that we first need to isolate the "t" variable:
x = t + 4
x - 4 = t
t = x - 4
Using that in the second equation:
y = 2*(x - 4) + 7
y = 2*x - 8 + 7
y = 2*x - 1
The parametric equations are describing the line "y = 2x -1" letter D.
