Triangle qrs is dilated about the origin by a scale factor of 2/3 to create triangle abc . are the two triangles congruent?

No

Step-by-step explanation:

In a dilation, size is not preserved. Triangles must have the same shape and size in order to be congruent. If it is dilated by 2/3, then it gets smaller, and is therefore not the same size.

its a straight line parallel to the time axis

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!