a. i) The graph would flip to open downward but will still has its vertex at the origin.

ii) The opening of the parabola would become narrower, so that it forms a

skinner shape.

iii) The graph would move up 6 units.

b.

I found an answer from reference.wolfram.com

Numerical Solution **of** Differential-Algebraic **Equations**â€”Wolfram ...

In general, a system **of** ordinary differential **equations** (ODEs) **can** be expressed ... For this DAE, the **initial** conditions **are** not free; the second **equation** ...

For more information, see Numerical Solution **of** Differential-Algebraic **Equations**â€”Wolfram ...

I found an answer from en.wikipedia.org

PageRank - Wikipedia

In the **original** form **of** PageRank, the sum **of** PageRank over all pages **was** the total number **of** pages on the web at that time, so each page in this example **would** ...

For more information, see PageRank - Wikipedia