Are the following statements true or false?

? True False  1. A parametrization of the graph of $y = \ln(x)$ for $x > 0$ is given by $x = e^t, y = t$ for $-\infty < t < \infty$.

? True False  2. The line parametrized by $x = 7, y = 5t, z = 6 + t$ is parallel to the x-axis.

? True False  3. The parametric curve $x = (3t+4)^2, y = 5(3t+4)^2-9$, for $0 \leq t \leq 3$ is a line segment.