### Home > APCALC > Chapter 10 > Lesson 10.4.2 > Problem10-173

10-173.

Suppose that $x = 9t^2$ and $y = \frac { 1 } { 2 - ( 3 t ) ^ { 2 } }$. 10-173 HW eTool (Desmos). Homework Help ✎

1. Express $y$ as a function of $x$.

Look at the equation for $y$. $(3t)^2 = 9t^2$

2. Express $x$ as a function of $y$.

Solve your equation from part (a) for $x$.

3. How will the graph of the parametric equations above be different if $x = u$ and $y = \frac { 1 } { 2 - u }$?