Lesson 29.2 DOL Parametric to Rectangular

Converting parametric equations to a rectangular equation is called _________________ the parameter.

• eliminating

• finding

• converting

• jumping

When you solve for the "t" in example one in the equation x=t+4, it equals...

• x+4=t

• t=x-4

• 3t+4=x

• 3y+4=t

When you solve for the "t" in example one in the equation y=3t+4, it equals...

• y+4=t

• t=(y-4)/3

• (y+4)/3= t

• 3y+4=t

 $x=3t+4$   $y=t^2-9$  

 If you solve for t in the x equation, you get $t=\frac{x-4}{3}$  If you substitute this equation into the y equation, you should get....

• Purple

• Green 

• Black

• Red

Write $x=\frac{t}{2}$  and  $y=4t-3$ in rectangular form

•  $y=4x-3$  

•  $y=2x-3$  

•  $y=8x-3$  

•  $y=6x-3$  

Find the point based on the parametric equations. t = 3

x = 1 - 2t

y =4t + 1

• (-5, 13)

• (5, 13)

• (13, -5)

• (13, 5)